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Security Bulletins

Security Bulletins
Zoom does not provide guidance on vulnerability impacts to individual customers due to a Zoom Security Bulletin or provide additional details about a vulnerability. We recommend users to update to the latest version of Zoom software in order to get the latest fixes and security improvements.

	ZSB	Date	Title	Severity	CVE (if applicable)
	ZSB-23045	09/12/2023	CleanZoom - Untrusted Search Path	High	CVE-2023-39201
Severity: High CVSS Score: 7.2 CVSS Vector String: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H Description: Untrusted search path in CleanZoom before file date 07/24/2023 may allow a privileged user to conduct an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: CleanZoom before version file date 07/24/2023 Source: Reported by sim0nsecurity.
	ZSB-23043	09/12/2023	Zoom Desktop Client for Linux - Improper Input Validation	Medium	CVE-2023-39208
Severity: Medium CVSS Score: 6.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Description: Improper input validation in Zoom Desktop Client for Linux before version 5.15.10 may allow an unauthenticated user to conduct a denial of service via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Linux before version 5.15.10 Source: Reported by Antoine Roly (aroly).
	ZSB-23040	09/12/2023	Zoom Clients - Improper Authentication	High	CVE-2023-39215
Severity: High CVSS Score: 7.1 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H Description: Improper authentication in Zoom clients may allow an authenticated user to conduct a denial of service via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.15.5 Zoom Desktop Client for macOS before version 5.15.5 Zoom Desktop Client for Linux before version 5.15.5 Zoom VDI Client before version 5.14.12 Zoom VDI Client before version 5.15.4 Zoom Mobile App for Android before version 5.15.5 Zoom Mobile App for iOS before version 5.15.5 Zoom Meeting SDK’s before version 5.15.5 Source: Reported by Zoom Offensive Security Team.
	ZSB-23041	08/08/2023	Zoom Desktop Client for Windows - Improper Input Validation	Medium	CVE-2023-39209
Severity: Medium CVSS Score: 5.9 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L Description: Improper input validation in Zoom Desktop Client for Windows before version 5.15.5 may allow an authenticated user to enable an information disclosure via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.15.5 Source: Reported by Zoom Offensive Security Team.
	ZSB-23039	08/08/2023	Zoom Client’s - Exposure of Sensitive Information	High	CVE-2023-39214
Severity: High CVSS Score: 7.6 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H Description: Exposure of sensitive information in Zoom Client's before version 5.15.5 may allow an authenticated user to enable a denial of service via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.15.5 Zoom Desktop Client for macOS before version 5.15.5 Zoom Desktop Client for Linux before version 5.15.5 Zoom Mobile App for Android before version 5.15.5 Zoom Mobile App for iOS before version 5.15.5 Zoom Rooms for iPad before version 5.15.5 Zoom Rooms for Android before version 5.15.5 Zoom Rooms for Windows before version 5.15.5 Zoom Rooms for macOS before version 5.15.5 Source: Reported by Zoom Offensive Security Team.
	ZSB-23038	08/08/2023	Zoom Desktop Client for Windows and Zoom VDI Client - Improper Neutralization of Special Elements	Critical	CVE-2023-39213
Severity: Critical CVSS Score: 9.6 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Description: Improper neutralization of special elements in Zoom Desktop Client for Windows and Zoom VDI Client before version 5.15.2 may allow an unauthenticated user to enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.15.2 Zoom VDI Client before version 5.15.2 Source: Reported by Zoom Offensive Security Team.
	ZSB-23037	08/08/2023	Zoom Rooms for Windows - Untrusted Search Path	High	CVE-2023-39212
Severity: High CVSS Score: 7.9 CVSS Vector String: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H Description: Untrusted search path in Zoom Rooms for Windows before 5.15.5 may allow an authenticated user to enable a denial of service via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows before version 5.15.5 Source: Reported by sim0nsecurity.
	ZSB-23036	08/08/2023	Zoom Desktop Client for Windows and Zoom Rooms for Windows - Improper Privilege Management	High	CVE-2023-39211
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: Improper privilege management in Zoom Desktop Client for Windows and Zoom Rooms for Windows before version 5.15.5 may allow an authenticated user to enable an information disclosure via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop for Windows before version 5.15.5 Zoom Rooms for Windows before version 5.15.5 Source: Reported by sim0nsecurity.
	ZSB-23035	08/08/2023	Zoom Client SDK for Windows - Clear text Storage of Sensitive Information	Medium	CVE-2023-39210
Severity: Medium CVSS Score: 5.5 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Description: Clear text storage of sensitive information in Zoom Client SDK for Windows before version 5.15.0 may allow an authenticated user to enable an information disclosure via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client SDK for Windows before version 5.15.0 Source: Reported by sim0nsecurity.
	ZSB-23034	08/08/2023	Zoom Clients - Client-Side Enforcement of Server-Side Security	Medium	CVE-2023-39218
Severity: Medium CVSS Score: 6.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Description: Client-side enforcement of server-side security in Zoom clients before version 5.14.10 may allow a privileged user to enable information disclosure via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.14.10 Zoom Desktop Client for macOS before version 5.14.10 Zoom Desktop Client for Linux before version 5.14.10 Zoom VDI Host and Plugin before version 5.14.10 Zoom Mobile App for Android before version 5.14.10 Zoom Mobile App for iOS before version 5.14.10 Zoom Rooms for iPad before version 5.14.10 Zoom Rooms for Android before version 5.14.10 Zoom Rooms for Windows before version 5.14.10 Zoom Rooms for macOS before version 5.14.10 Source: Reported by Zoom Offensive Security Team.
	ZSB-23033	08/08/2023	Zoom Client’s - Improper Input Validation	Medium	CVE-2023-39217
Severity: Medium CVSS Score: 5.3 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Description: Improper input validation in Zoom Client’s before version 5.14.10 may allow an unauthenticated user to enable a denial of service via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.14.10 Zoom Desktop Client for macOS before version 5.14.10 Zoom Desktop Client for Linux before version 5.14.10 Zoom VDI Client before version 5.14.10 Zoom Mobile App for Android before version 5.14.10 Zoom Mobile App for iOS before version 5.14.10 Zoom Rooms for iPad before version 5.14.10 Zoom Rooms for Android before version 5.14.10 Zoom Rooms for Windows before version 5.14.10 Zoom Rooms for macOS before version 5.14.10 Source: Reported by Zoom Offensive Security Team.
	ZSB-23032	08/08/2023	Zoom Desktop Client for Windows - Improper Input Validation	Critical	CVE-2023-39216
Severity: Critical CVSS Score: 9.6 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Description: Improper input validation in Zoom Desktop Client for Windows before version 5.14.7 may allow an unauthenticated user to enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.14.7 Source: Reported by Zoom Offensive Security Team.
	ZSB-23031	08/08/2023	Zoom Clients - Client-Side Enforcement of Server-Side Security	High	CVE-2023-36535
Severity: High CVSS Score: 7.1 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L Description: Client-side enforcement of server-side security in Zoom clients before version 5.14.10 may allow an authenticated user to enable information disclosure via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Clients for Windows before version 5.14.10 Zoom Desktop Client for macOS before version 5.14.10 Zoom Desktop Client for Linux before version 5.14.10 Zoom VDI Host and Plugin before version 5.14.10 Zoom Mobile App for Android before version 5.14.10 Zoom Mobile App for iOS before version 5.14.10 Zoom Rooms for iPad before version 5.14.10 Zoom Rooms for Android before version 5.14.10 Zoom Rooms for Windows before version 5.14.10 Zoom Rooms for macOS before version 5.14.10 Source: Reported by Zoom Offensive Security Team.
	ZSB-23030	08/08/2023	Zoom Desktop Client for Windows - Path Traversal	Critical	CVE-2023-36534
Severity: Critical CVSS Score: 9.3 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H Description: Path traversal in Zoom Desktop Client for Windows before version 5.14.7 may allow an unauthenticated user to enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client Windows before version 5.14.7 Source: Reported by Zoom Offensive Security Team.
	ZSB-23029	08/08/2023	Zoom SDK’s - Uncontrolled Resource Consumption	High	CVE-2023-36533
Severity: High CVSS Score: 7.1 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Description: Uncontrolled resource consumption in Zoom SDK’s before version 5.14.7 may allow an unauthenticated user to enable a denial of service via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client SDK for Windows before version 5.14.7 Zoom Client SDK for iOS before version 5.14.7 Zoom Client SDK for Android before version 5.14.7 Zoom Client SDK for macOS before version 5.14.7 Zoom Client SDK for Linux before version 5.14.7 Source: Reported by Zoom Offensive Security Team.
	ZSB-23028	08/08/2023	Zoom Clients - Buffer Overflow	Medium	CVE-2023-36532
Severity: Medium CVSS Score: 5.9 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Description: Buffer overflow in Zoom clients before version 5.14.5 may allow an unauthenticated user to enable a denial of service via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.14.5 Zoom Desktop Client for macOS before version 5.14.5 Zoom Desktop Client for Linux before version 5.14.5 Zoom VDI Host and Plugin before version 5.14.5 Zoom Mobile App for Android before version 5.14.5 Zoom Mobile App for iOS before version 5.14.5 Zoom Rooms for iPad before version 5.14.5 Zoom Rooms for Android before version 5.14.5 Zoom Rooms for Windows before version 5.14.5 Zoom Rooms for macOS before version 5.14.5 Source: Reported by Zoom Offensive Security Team.
	ZSB-23027	08/08/2023	Zoom Desktop Client for Windows - Insufficient Verification of Data Authenticity	High	CVE-2023-36541
Severity: High CVSS Score: 8 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Description: Insufficient verification of data authenticity in Zoom Desktop Client for Windows before version 5.14.5 may allow an authenticated user to enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.14.5 Source: Reported by sim0nsecurity.
	ZSB-23026	08/08/2023	Zoom Desktop Client for Windows - Untrusted Search Path	High	CVE-2023-36540
Severity: High CVSS Score: 7.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L Description: Untrusted search path in the installer for Zoom Desktop Client for Windows before version 5.14.5 may allow an authenticated user to enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before version 5.14.5 Source: Reported by sim0nsecurity.
	ZSB-23024	07/11/2023	Improper Access Control	High	CVE-2023-36538
Severity: High CVSS Score: 8.4 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H Description: Improper access control in Zoom Rooms for Windows before version 5.15.0 may allow an authenticated user to enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows before version 5.15.0 Source: Reported by sim0nsecurity.
	ZSB-23023	07/11/2023	Improper Privilege Management	High	CVE-2023-36537
Severity: High CVSS Score: 7.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L Description: Improper privilege management in Zoom Rooms for Windows before version 5.14.5 may allow an authenticated user to enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows before version 5.14.5 Source: Reported by sim0nsecurity.
	ZSB-23022	07/11/2023	Untrusted Search Path	High	CVE-2023-36536
Severity: High CVSS Score: 8.2 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Description: Untrusted search path in the installer for Zoom Rooms for Windows before version 5.15.0 may allow an authenticated user to enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows before version 5.15.0 Source: Reported by sim0nsecurity.
	ZSB-23021	07/11/2023	Insecure Temporary File	High	CVE-2023-34119
Severity: High CVSS Score: 8.2 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Description: Insecure temporary file in the installer for Zoom Rooms for Windows before version 5.15.0 may allow an authenticated user to enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows before version 5.15.0 Source: Reported by sim0nsecurity.
	ZSB-23020	07/11/2023	Improper Privilege Management	High	CVE-2023-34118
Severity: High CVSS Score: 7.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L Description: Improper privilege management in Zoom Rooms for Windows before version 5.14.5 may allow an authenticated user to enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows before version 5.14.5 Source: Reported by sim0nsecurity.
	ZSB-23019	07/11/2023	Relative Path Traversal	Low	CVE-2023-34117
Severity: Low CVSS Score: 3.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Description: Relative path traversal in the Zoom Client SDK before version 5.15.0 may allow an unauthorized user to enable information disclosure via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client SDK before version 5.15.0 Source: Reported by Dimitrios Valsamaras of Microsoft.
	ZSB-23018	07/11/2023	Improper Input Validation	High	CVE-2023-34116
Severity: High CVSS Score: 8.2 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:H Description: Improper input validation in the Zoom Desktop Client for Windows before version 5.15.0 may allow an unauthorized user to enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Desktop Client for Windows before 5.15.0. Source: Reported by sim0nsecurity.
	ZSB-23025	06/29/2023	Exposure of Sensitive Information	Medium	CVE-2023-36539
Severity: Medium CVSS Score: 5.3 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Description: Exposure of information intended to be encrypted by some Zoom clients may lead to disclosure of sensitive information. Zoom encrypts in-meeting chat messages using a per-meeting key and then transmits these encrypted messages between user devices and Zoom using TLS encryption. In the affected products, a copy of each in-meeting chat message was also sent encrypted only using TLS and not with the per-meeting key, including messages sent during End-to-End Encrypted (E2EE) meetings. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download, and avoid using the in-meeting chat while on the affected versions. Affected Products: Zoom Desktop Client for Windows 5.15.0 and 5.15.1 Zoom Desktop Client for macOS version 5.15.0 only Zoom Desktop Client for Linux version 5.15.0 only Zoom Mobile App for iOS version 5.15.0 only Zoom Mobile App for Android version 5.15.0 only Zoom Rooms for Windows version 5.15.0 only Zoom Rooms for macOS version 5.15.0 only Zoom Rooms for iPad version 5.15.0 only Zoom Phone Appliance version 5.15.0 only Zoom Meeting SDK for Android version 5.15.0 only Zoom Meeting SDK for iOS version 5.15.0 only Zoom Meeting SDK for macOS version 5.15.0 only Zoom Meeting SDK for Windows version 5.15.1 only Zoom Video SDK for Windows version 1.8.0 only Zoom Video SDK for macOS version 1.8.0 only Zoom Video SDK for Android version 1.8.0 only Zoom Video SDK for iOS version 1.8.0 only Zoom Video SDK for Linux version 1.8.0 only Source: Reported by Zoom Offensive Security Team.
	ZSB-23017	06/13/2023	Buffer Copy without Checking Size of Input	Medium	CVE-2023-34115
Severity: Medium CVSS Score: 4.0 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Description: Buffer copy without checking size of input in Zoom Meeting SDK before 5.13.0 may allow an authenticated user to potentially enable a denial of service via local access. This issue may result in the Zoom Meeting SDK to crash and need to be restarted. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Meeting SDK before 5.13.0. Source: Reported by Eugene Lim
	ZSB-23016	06/13/2023	Exposure of Resource to Wrong Sphere	Medium	CVE-2023-34114
Severity: Medium CVSS Score: 4.3 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N Description: Exposure of resource to wrong sphere in Zoom for Windows and Zoom for macOS clients before 5.14.10 may allow an authenticated user to potentially enable information disclosure via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows before version 5.14.10 Zoom for macOS before version 5.14.10 Source: Reported by Siddhi Katariya (chikorita)
	ZSB-23015	06/13/2023	Insufficient Verification of Data Authenticity	High	CVE-2023-34113
Severity: High CVSS Score: 8 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Description: Insufficient verification of data authenticity in Zoom for Windows clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.14.0 Source: Reported by sim0nsecurity
	ZSB-23014	06/13/2023	Improper Input Validation	High	CVE-2023-34122
Severity: High CVSS Score: 7.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L Description: Improper input validation in the installer for Zoom for Windows clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via local access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.14.0 Source: Reported by sim0nsecurity
	ZSB-23013	06/13/2023	Improper Input Validation	Medium	CVE-2023-34121
Severity: Medium CVSS Score: 4.9 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N Description: Improper input validation in the Zoom for Windows, Zoom Rooms, Zoom VDI Windows Meeting clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via network access. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.14.0 Zoom Rooms client for Windows before version 5.14.0 Zoom VDI Windows Meeting clients before version 5.14.0 Source: Reported by Mohit Rawat - ASPIA InfoTech
	ZSB-23012	06/13/2023	Improper Privilege Management	High	CVE-2023-34120
Severity: High CVSS Score: 8.7 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L Description: Improper privilege management in Zoom for Windows, Zoom Rooms for Windows, and Zoom VDI for Windows clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via local access. Users may potentially utilize higher level system privileges maintained by the Zoom client to spawn processes with escalated privileges. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.14.0 Zoom Rooms client for Windows before version 5.14.0 Zoom VDI Windows Meeting clients before version 5.14.0 Source: Reported by sim0nsecurity
	ZSB-23011	06/13/2023	Improper Access Control in Zoom VDI Client Installer	High	CVE-2023-28603
Severity: High CVSS Score: 7.7 CVSS Vector String: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L Description: Zoom VDI client installer prior to 5.14.0 contains an improper access control vulnerability. A malicious user may potentially delete local files without proper permissions. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom VDI Windows Meeting installer before version 5.14.0 Source: Reported by sim0nsecurity
	ZSB-23010	06/13/2023	Improper Verification of Cryptographic Signature in Zoom Clients	Low	CVE-2023-28602
Severity: Low CVSS Score: 2.8 CVSS Vector String: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N Description: Zoom for Windows clients prior to 5.13.5 contain an improper verification of cryptographic signature vulnerability. A malicious user may potentially downgrade Zoom Client components to previous versions. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.13.5 Source: Reported by Kirin (Pwnrin)
	ZSB-23009	06/13/2023	Improper Restriction of Operations within the Bounds of a Memory Buffer in Zoom Clients	Low	CVE-2023-28601
Severity: Low CVSS Score: 2 CVSS Vector String: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Description: Zoom for Windows clients prior to 5.14.0 contain an improper restriction of operations within the bounds of a memory buffer vulnerability. A malicious user may alter protected Zoom Client memory buffer potentially causing integrity issues within the Zoom Client. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.14.0 Source: Reported by sim0nsecurity
	ZSB-23008	06/13/2023	Improper access control in Zoom Clients	Medium	CVE-2023-28600
Severity: Medium CVSS Score: 6.6 CVSS Vector String: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L Description: Zoom for macOS clients prior to 5.14.0 contain an improper access control vulnerability. A malicious user may be able to delete/replace Zoom Client files potentially causing a loss of integrity and availability to the Zoom Client. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for macOS clients before version 5.14.0 Source: Reported by Koh M. Nakagawa (@tsunek0h)
	ZSB-23007	06/13/2023	HTML Injection vulnerability in Zoom Clients	Medium	CVE-2023-28599
Severity: Medium CVSS Score: 4.2 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N Description: Zoom clients prior to 5.13.10 contain an HTML injection vulnerability. A malicious user could inject HTML into their display name potentially leading a victim to a malicious website during meeting creation. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Android, iOS, Linux, macOS, and Windows clients before version 5.13.10 Source: Reported by Mohit Rawat - ASPIA InfoTech
	ZSB-23006	06/13/2023	HTML injection in Zoom Linux Clients	High	CVE-2023-28598
Severity: High CVSS Score: 7.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Description: Zoom for Linux clients prior to 5.13.10 contain an HTML injection vulnerability. If a victim starts a chat with a malicious user it could result in a Zoom application crash. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Linux clients before version 5.13.10 Source: Reported by Antoine Roly (aroly)
	ZSB-23005	03/14/2023	Improper trust boundary implementation for SMB in Zoom Clients [Updated 2023-04-07]	High	CVE-2023-28597
Severity: High CVSS Score: 8.3 CVSS Vector String: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Description: Zoom clients prior to 5.13.5 contain an improper trust boundary implementation vulnerability. If a victim saves a local recording to an SMB location and later opens it using a link from Zoom’s web portal, an attacker positioned on an adjacent network to the victim client could set up a malicious SMB server to respond to client requests, causing the client to execute attacker controlled executables. This could result in an attacker gaining access to a user's device and data, and remote code execution. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Changes - 2023-04-07 - Removed Android and iOS from the “Affected Products” section Affected Products: Zoom (for Linux, macOS, and Windows) clients before version 5.13.5 Zoom Rooms (for Linux, macOS, and Windows) clients before version 5.13.5 Zoom VDI Windows Meeting clients before version 5.13.10 Source*: Reported by Zoom Offensive Security Team
	ZSB-23004	03/14/2023	Local Privilege Escalation in Zoom for macOS Installers	Medium	CVE-2023-28596
Severity: Medium CVSS Score: 5.2 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Description: Zoom Client for IT Admin macOS installers before version 5.13.5 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability in an attack chain during the installation process to escalate their privileges to privileges to root. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for IT Admin macOS installers before version 5.13.5 Source: Reported by Koh M. Nakagawa (tsunekoh)
	ZSB-23003	03/14/2023	Local Privilege Escalation in Zoom for Windows Installers	High	CVE-2023-22883
Severity: High CVSS Score: 7.2 CVSS Vector String: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H Description: Zoom Client for IT Admin Windows installers before version 5.13.5 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability in an attack chain during the installation process to escalate their privileges to the SYSTEM user. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for IT Admin Windows installers before version 5.13.5 Source: Reported by sim0nsecurity
	ZSB-23002	03/14/2023	Denial of Service in Zoom Clients	Medium	CVE-2023-22881 CVE-2023-22882
Severity: Medium CVSS Score: 6.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Description: Zoom clients before version 5.13.5 contain a STUN parsing vulnerability. A malicious actor could send specially crafted UDP traffic to a victim Zoom client to remotely cause the client to crash, causing a denial of service. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom (for Android, iOS, Linux, macOS, and Windows) clients before version 5.13.5 Source: Reported by Zoom Offensive Security Team
	ZSB-23001	03/14/2023	Information Disclosure in Zoom for Windows Clients	Medium	CVE-2023-22880
Severity: Medium CVSS Score: 6.8 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N Description: Zoom for Windows clients before version 5.13.3, Zoom Rooms for Windows clients before version 5.13.5 and Zoom VDI for Windows clients before 5.13.1 contain an information disclosure vulnerability. A recent update to the Microsoft Edge WebView2 runtime used by the affected Zoom clients, transmitted text to Microsoft’s online Spellcheck service instead of the local Windows Spellcheck. Updating Zoom remediates this vulnerability by disabling the feature. Updating Microsoft Edge WebView2 Runtime to at least version 109.0.1481.0 and restarting Zoom remediates this vulnerability by updating Microsoft’s telemetry behavior. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Windows clients before version 5.13.3 Zoom Rooms for Windows clients before version 5.13.3 Zoom VDI for Windows clients before 5.13.1 Source: Reported by Zoom Security Team
	ZSB-22035	01/06/2023	Local Privilege Escalation in Zoom Rooms for Windows Installers	High	CVE-2022-36930
Severity: High CVSS Score: 8.2 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Description: Zoom Rooms for Windows installers before version 5.13.0 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability in an attack chain to escalate their privileges to the SYSTEM user. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Windows installers before version 5.13.0 Source: Reported by sim0nsecurity
	ZSB-22034	01/06/2023	Local Privilege Escalation in Zoom Rooms for Windows Clients	High	CVE-2022-36929
Severity: High CVSS Score: 7.8 CVSS Vector String: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Description: Zoom Rooms for Windows clients before version 5.12.7 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability in an attack chain to escalate their privileges to the SYSTEM user. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download Affected Products: Zoom Rooms for Windows clients before version 5.12.7 Source: Reported by sim0nsecurity
	ZSB-22033	01/06/2023	Path Traversal in Zoom for Android Clients	Medium	CVE-2022-36928
Severity: Medium CVSS Score: 6.1 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N Description: Zoom for Android clients before version 5.13.0 contain a path traversal vulnerability. A third party app could exploit this vulnerability to read and write to the Zoom application data directory. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom for Android clients before version 5.13.0 Source: Reported by Dimitrios Valsamaras of Microsoft
	ZSB-22032	01/06/2023	Local Privilege Escalation in Zoom Rooms for macOS Clients	High	CVE-2022-36926 CVE-2022-36927
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: Zoom Rooms for macOS clients before version 5.11.3 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability to escalate their privileges to root. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for macOS clients before version 5.11.3 Source: Reported by Kirin (Pwnrin)
	ZSB-22031	01/06/2023	Insecure key generation for Zoom Rooms for macOS Clients	Medium	CVE-2022-36925
Severity: Medium CVSS Score: 4.4 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L Description: Zoom Rooms for macOS clients before version 5.11.4 contain an insecure key generation mechanism. The encryption key used for IPC between the Zoom Rooms daemon service and the Zoom Rooms client was generated using parameters that could be obtained by a local low-privileged application. That key can then be used to interact with the daemon service to execute privileged functions and cause a local denial of service. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for macOS before version 5.11.4 Source: Reported by Kirin (Pwnrin)
	ZSB-22030	11/15/2022	Local Privilege Escalation in Zoom Rooms Installer for Windows	High	CVE-2022-36924
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: The Zoom Rooms Installer for Windows prior to 5.12.6 contains a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability during the install process to escalate their privileges to the SYSTEM user. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms Installer for Windows before version 5.12.6 Source: Reported by sim0nsecurity
	ZSB-22029	11/15/2022	Local Privilege Escalation in Zoom Client Installer for macOS	High	CVE-2022-28768
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: The Zoom Client for Meetings Installer for macOS (Standard and for IT Admin) before version 5.12.6 contains a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability during the install process to escalate their privileges to root. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings Installer for macOS (Standard and for IT Admin) before version 5.12.6 Source: Reported by Koh M. Nakagawa (tsunekoh)
	ZSB-22027	11/15/2022	DLL injection in Zoom Windows Clients	High	CVE-2022-28766
Severity: High CVSS Score: 8.1 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L Description: Windows 32-bit versions of the Zoom Client for Meetings before 5.12.6 and Zoom Rooms for Conference Room before version 5.12.6 are susceptible to a DLL injection vulnerability. A local low-privileged user could exploit this vulnerability to run arbitrary code in the context of the Zoom client. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download Affected Products: Zoom Client for Meetings for Windows (32-bit) prior to 5.12.6 Zoom VDI Windows Meeting Client for Windows (32-bit) prior to 5.12.6 Zoom Rooms for Conference Room for Windows (32-bit) prior to 5.12.6 Source: Reported by sim0nsecurity
	ZSB-22025	11/10/2022	Local information exposure in Zoom Clients	Low	CVE-2022-28764
Severity: Low CVSS Score: 3.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Description: The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.6 is susceptible to a local information exposure vulnerability. A failure to clear data from a local SQL database after a meeting ends and the usage of an insufficiently secure per-device key encrypting that database results in a local malicious user being able to obtain meeting information such as in-meeting chat for the previous meeting attended from that local user account. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.6 Zoom VDI Windows Meeting Clients before version 5.12.6 Zoom Rooms for Conference Room (for Android, iOS, Linux, macOS, and Windows) before version 5.12.6 Source: Reported by Christian Zäske of SySS GmbH
	ZSB-22024	10/24/2022	Improper URL parsing in Zoom Clients	High	CVE-2022-28763
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Description: The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.2 is susceptible to a URL parsing vulnerability. If a malicious Zoom meeting URL is opened, the malicious link may direct the user to connect to an arbitrary network address, leading to additional attacks including session takeovers. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.2 Zoom VDI Windows Meeting Clients before version 5.12.2 Zoom Rooms for Conference Room (for Android, iOS, Linux, macOS, and Windows) before version 5.12.2 Source: Reported by Zoom Security Team
	ZSB-22023	10/11/2022	Debugging port misconfiguration in Zoom Apps in the Zoom Client for Meetings for macOS	High	CVE-2022-28762
Severity: High CVSS Score: 7.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L Description: Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with 5.10.6 and prior to 5.12.0 contains a debugging port misconfiguration. When camera mode rendering context is enabled as part of the Zoom App Layers API by running certain Zoom Apps, a local debugging port is opened by the Zoom client. A local malicious user could use this debugging port to connect to and control the Zoom Apps running in the Zoom client. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with 5.10.6 and prior to 5.12.0 Source: Reported by Zoom Security Team
	ZSB-22022	10/11/2022	Zoom On-Prem Deployments: Improper Access Control	Medium	CVE-2022-28761
Severity: Medium CVSS Score: 6.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Description: Zoom On-Premise Meeting Connector MMR before version 4.8.20220916.131 contains an improper access control vulnerability. As a result, a malicious actor in a meeting or webinar they are authorized to join could prevent participants from receiving audio and video causing meeting disruptions. For Zoom On-Premise Deployments, IT administrators can help keep their Zoom software up-to-date by following this: https://support.zoom.us/hc/en-us/articles/360043960031 Affected Products: Zoom On-Premise Meeting Connector MMR before version 4.8.20220916.131 Source: Reported by Zoom Offensive Security Team
	ZSB-22021	09/13/2022	Zoom On-Prem Deployments: Improper Access Control	Medium	CVE-2022-28760
Severity: Medium CVSS Score: 6.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Description: Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants. For Zoom On-Premise Deployments, IT administrators can help keep their Zoom software up-to-date by following this: https://support.zoom.us/hc/en-us/articles/360043960031 Affected Products: Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 Source: Reported by Zoom Offensive Security Team
	ZSB-22020	09/13/2022	Zoom On-Prem Deployments: Improper Access Control	High	CVE-2022-28758 CVE-2022-28759
Severity: High CVSS Score: 8.2 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N Description: Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious actor could obtain the audio and video feed of a meeting they were not authorized to join and cause other meeting disruptions. For Zoom On-Premise Deployments, IT administrators can help keep their Zoom software up-to-date by following this: https://support.zoom.us/hc/en-us/articles/360043960031 Affected Products: Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 Source: Reported by Zoom Security Team
	ZSB-22019	08/17/2022	Local Privilege Escalation in Auto Updater for Zoom Client for Meetings for macOS	High	CVE-2022-28757
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: The Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with version 5.7.3 and before 5.11.6 contains a vulnerability in the auto update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root. Note: This issue allows for a bypass of the patch issued in 5.11.5 to address CVE-2022-28756. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for macOS (Standard and for IT Admin) starting version 5.7.3 and before version 5.11.6 Source: Reported by Csaba Fitzl (theevilbit) of Offensive Security
	ZSB-22018	08/13/2022	Local Privilege Escalation in Auto Updater for macOS Zoom products [Updated 2022-09-13]	High	CVE-2022-28756
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: The Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with version 5.7.3 and before 5.11.5 and Zoom Rooms for Conference Room for macOS before version 5.11.6 contains a vulnerability in the auto update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Changes - 2022-09-13 - Updated title, description and added Zoom Rooms to the “Affected Products” section. Affected Products: Zoom Client for Meetings for macOS (Standard and for IT Admin) starting version 5.7.3 and before version 5.11.5 Zoom Rooms for Conference Room for macOS before version 5.11.6 Source*: Reported by Patrick Wardle of Objective-See
	ZSB-22017	08/09/2022	Local Privilege Escalation in Zoom Client for Meetings for macOS	High	CVE-2022-28751
Severity: High CVSS Score: 8.8 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Description: The Zoom Client for Meetings for macOS (Standard and for IT Admin) before version 5.11.3 contain a vulnerability in the package signature validation during the update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for macOS (Standard and for IT Admin) before version 5.11.3 Source: Reported by Patrick Wardle of Objective-See
	ZSB-22014	08/09/2022	Zoom On-Premise Deployments: Improper Access Control	High	CVE-2022-28753 CVE-2022-28754
Severity: High CVSS Score: 7.1 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N Description: Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants, can admit themselves into the meeting from the waiting room, and can become host and cause other meeting disruptions. For Zoom On-Premise Deployments, IT administrators can help keep their Zoom software up-to-date by following this: https://support.zoom.us/hc/en-us/articles/360043960031 Affected Products: Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 Source: Reported by Zoom Offensive Security Team
	ZSB-22016	08/09/2022	Improper URL parsing in Zoom Clients [Updated 2022-10-24]	Critical	CVE-2022-28755
Severity: Critical CVSS Score: 9.6 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Description: The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.11.0 are susceptible to a URL parsing vulnerability. If a malicious Zoom meeting URL is opened, the malicious link may direct the user to connect to an arbitrary network address, leading to additional attacks including the potential for remote code execution through launching executables from arbitrary paths. Changes - 2022-10-24 - Added Zoom Rooms to the “Affected Products” section. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.11.0 Source*: Reported by Zoom Offensive Security Team
	ZSB-22012	08/09/2022	Zoom On-Premise Deployments: Stack Buffer Overflow in Meeting Connector	High	CVE-2022-28750
Severity: High CVSS Score: 7.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Description: Zoom On-Premise Meeting Connector Zone Controller (ZC) before version 4.8.20220419.112 fails to properly parse STUN error codes, which can result in memory corruption and could allow a malicious actor to crash the application. In versions older than 4.8.12.20211115, this vulnerability could also be leveraged to execute arbitrary code. For Zoom On-Premise Deployments, IT administrators can help keep their Zoom software up-to-date by following this guidance: https://support.zoom.us/hc/en-us/articles/360043960031 Affected Products: Zoom On-Premise Meeting Connector Zone Controller (ZC) before version 4.8.20220419.112 Source: Reported by Zoom Offensive Security Team
	ZSB-22011	06/14/2022	Insufficient Authorization Check During Meeting Join	Medium	CVE-2022-28749
Severity: Medium CVSS Score: 6.5 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Description: Zoom’s On-Premise Meeting Connector MMR before version 4.8.113.20220526 fails to properly check the permissions of a Zoom meeting attendee. As a result, a threat actor in the Zoom’s waiting room can join the meeting without the consent of the host. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: On-Premise Meeting Connectors before version 4.8.113.20220526 Source: Reported by Zoom Offensive Security Team
	ZSB- 22010	06/14/2022	DLL injection in Zoom Opener installer for Zoom and Zoom Rooms clients	High	CVE-2022-22788
Severity: High CVSS Score: 7.1 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H Description: The Zoom Opener installer is downloaded by a user from the Launch meeting page, when attempting to join a meeting without having the Zoom Meeting Client installed. The Zoom Opener installer for Zoom Client for Meetings before version 5.10.3 and Zoom Rooms for Conference Room for Windows before version 5.10.3 are susceptible to a DLL injection attack. This vulnerability could be used to run arbitrary code on the victim’s host. Users can help keep themselves secure by removing older versions of the Zoom Opener installer and running the latest version of the Zoom Opener installer from the “Download Now" button on the "Launch Meeting" page. User’s can also protect themselves by downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for Windows before version 5.10.3 All Zoom Rooms for Conference Room for Windows before version 5.10.3 Source: Reported by James Tsz Ko Yeung
	ZSB-22009	05/17/2022	Insufficient hostname validation during server switch in Zoom Client for Meetings	Medium	CVE-2022-22787
Severity: Medium CVSS Score: 5.9 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L Description: The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly validate the hostname during a server switch request. This issue could be used in a more sophisticated attack to trick an unsuspecting user’s client to connect to a malicious server when attempting to use Zoom services. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 Source: Reported by Ivan Fratric of Google Project Zero
	ZSB-22008	05/17/2022	Update package downgrade in Zoom Client for Meetings for Windows	High	CVE-2022-22786
Severity: High CVSS Score: 7.5 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Description: The Zoom Client for Meetings for Windows before version 5.10.0 and Zoom Rooms for Conference Room for Windows before version 5.10.0, fails to properly check the installation version during the update process. This issue could be used in a more sophisticated attack to trick a user into downgrading their Zoom client to a less secure version. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Zoom Client for Meetings for Windows before version 5.10.0 All Zoom Rooms for Conference Room for Windows before version 5.10.0 Source: Reported by Ivan Fratric of Google Project Zero
	ZSB-22007	05/17/2022	Improperly constrained session cookies in Zoom Client for Meetings	Medium	CVE-2022-22785
Severity: Medium CVSS Score: 5.9 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L Description: The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly constrain client session cookies to Zoom domains. This issue could be used in a more sophisticated attack to send a user’s Zoom-scoped session cookies to a non-Zoom domain. This could potentially allow for spoofing of a Zoom user. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 Source: Reported by Ivan Fratric of Google Project Zero
	ZSB- 22006	05/17/2022	Improper XML Parsing in Zoom Client for Meetings	High	CVE-2022-22784
Severity: High CVSS Score: 8.1 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Description: The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly parse XML stanzas in XMPP messages. This can allow a malicious user to break out of the current XMPP message context and create a new message context to have the receiving user’s client perform a variety of actions. This issue could be used in a more sophisticated attack to forge XMPP messages from the server. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 Source: Reported by Ivan Fratric of Google Project Zero
	ZSB- 22005	04/27/2022	Process memory exposure in Zoom on-premise Meeting services	High	CVE-2022-22783
Severity: High CVSS Score: 8.3 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/CR:H Description: A vulnerability in Zoom On-Premise Meeting Connector Controller version 4.8.102.20220310 and On-Premise Meeting Connector MMR version 4.8.102.20220310 exposes process memory fragments to connected clients, which could be observed by a passive attacker. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates. Affected Products: Zoom On-Premise Meeting Connector Controller version 4.8.102.20220310 Zoom On-Premise Meeting Connector MMR version 4.8.102.20220310 Source: Zoom Offensive Security Team
	ZSB-22004	04/27/2022	Local privilege escalation in Windows Zoom Clients	High	CVE-2022-22782
Severity: High CVSS Score: 7.9 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H Description: The Zoom Client for Meetings for Windows prior to version 5.9.7, Zoom Rooms for Conference Room for Windows prior to version 5.10.0, Zoom Plugins for Microsoft Outlook for Windows prior to version 5.10.3, and Zoom VDI Windows Meeting Clients prior to version 5.9.6; was susceptible to a local privilege escalation issue during the installer repair operation. A malicious actor could utilize this to potentially delete system level files or folders, causing integrity or availability issues on the user’s host machine. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Zoom Client for Meetings for Windows prior to version 5.9.7 All Zoom Rooms for Conference Room for Windows prior to version 5.10.0 All Zoom Plugins for Microsoft Outlook for Windows prior to version 5.10.3 All Zoom VDI Windows Meeting Clients prior to version 5.9.6 Source: Reported by the Zero Day Initiative
	ZSB-22003	04/27/2022	Update package downgrade in Zoom Client for Meetings for macOS	High	CVE-2022-22781
Severity: High CVSS Score: 7.5 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Description: The Zoom Client for Meetings for macOS (Standard and for IT Admin) prior to version 5.9.6 failed to properly check the package version during the update process. This could lead to a malicious actor updating an unsuspecting user’s currently installed version to a less secure version. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Zoom Client for Meetings for macOS (Standard and for IT Admin) prior to version 5.9.6 Source: Reported by Patrick Wardle of Objective-See
	ZSB-22002	02/08/2022	Zoom Team Chat Susceptible to Zip Bombing	Medium	CVE-2022-22780
Severity: Medium CVSS Score: 4.7 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L Description: The Zoom Client for Meetings chat functionality was susceptible to Zip bombing attacks in the following product versions: Android before version 5.8.6, iOS before version 5.9.0, Linux before version 5.8.6, macOS before version 5.7.3, and Windows before version 5.6.3. This could lead to availability issues on the client host by exhausting system resources. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Zoom Client for Meetings for Android before version 5.8.6 All Zoom Client for Meetings for iOS before version 5.9.0 All Zoom Client for Meetings for Linux before version 5.8.6 All Zoom Client for Meetings for macOS before version 5.7.3 All Zoom Client for Meetings for Windows before version 5.6.3 Source: Reported by Johnny Yu of Walmart Global Tech
	ZSB-22001	02/08/2022	Retained exploded messages in Keybase clients for macOS and Windows	Low	CVE-2022-22779
Severity: Low CVSS Score: 3.7 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Description: The Keybase Clients for macOS and Windows before version 5.9.0 fails to properly remove exploded messages initiated by a user. This can occur if the receiving user switches to a non-chat feature and places the host in a sleep state before the sending user explodes the messages. This could lead to disclosure of sensitive information which was meant to be deleted from a user’s filesystem. Users can help keep themselves secure by applying current updates or downloading the latest Keybase software with all current security updates from https://keybase.io/download. Affected Products: All Keybase Clients for macOS and Windows before version 5.9.0 Source: Reported by Olivia O'Hara
	ZSB-21022	12/14/2021	Arbitrary command execution in Keybase Client for Windows	Medium	CVE-2021-34426
Severity: Medium CVSS Score: 5.3 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Description: A vulnerability was discovered in the Keybase Client for Windows before version 5.6.0 when a user executed the "keybase git lfs-config" command on the command-line. In versions prior to 5.6.0, a malicious actor with write access to a user’s Git repository could leverage this vulnerability to potentially execute arbitrary Windows commands on a user’s local system. Users can help keep themselves secure by applying current updates or downloading the latest Keybase software with all current security updates from https://keybase.io/download. Affected Products: All Keybase Client for Windows before version 5.6.0 Source: Reported by RyotaK
	ZSB-21021	12/14/2021	Server Side Request Forgery in Zoom Client for Meetings chat	Medium	CVE-2021-34425
Severity: Medium CVSS Score: 4.7 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Description: The Zoom Client for Meetings before version 5.7.3 (for Android, iOS, Linux, macOS, and Windows) contain a server side request forgery vulnerability in the chat’s “link preview” functionality. In versions prior to 5.7.3, if a user were to enable the chat’s “link preview” feature, a malicious actor could trick the user into potentially sending arbitrary HTTP GET requests to URLs that the actor cannot reach directly. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.7.3 Source: Reported by Johnny Yu of Walmart Global Tech
	ZSB-21020	11/24/2021	Process memory exposure in Zoom Client and other products	Medium	CVE-2021-34424
Severity: Medium CVSS Score: 5.3 CVSS Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Description: A vulnerability was discovered in the products listed in the "Affected Products" section of this bulletin which potentially allowed for the exposure of the state of process memory. This issue could be used to potentially gain insight into arbitrary areas of the product’s memory. Zoom has addressed this issue in the latest releases of the products listed in the section below. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.8.4 Zoom Client for Meetings for Blackberry (for Android and iOS) before version 5.8.1 Zoom Client for Meetings for intune (for Android and iOS) before version 5.8.4 Zoom Client for Meetings for Chrome OS before version 5.0.1 Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows) before version 5.8.3 Controllers for Zoom Rooms (for Android, iOS, and Windows) before version 5.8.3 Zoom VDI Windows Meeting Client before version 5.8.4 Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64) before version 5.8.4.21112 Zoom VDI Citrix Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112 Zoom VDI VMware Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112 Zoom Meeting SDK for Android before version 5.7.6.1922 Zoom Meeting SDK for iOS before version 5.7.6.1082 Zoom Meeting SDK for Windows before version 5.7.6.1081 Zoom Meeting SDK for Mac before version 5.7.6.1340 Zoom Video SDK (for Android, iOS, macOS, and Windows) before version 1.1.2 Zoom On-Premise Meeting Connector before version 4.8.12.20211115 Zoom On-Premise Meeting Connector MMR before version 4.8.12.20211115 Zoom On-Premise Recording Connector before version 5.1.0.65.20211116 Zoom On-Premise Virtual Room Connector before version 4.4.7266.20211117 Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5692.20211117 Zoom Hybrid Zproxy before version 1.0.1058.20211116 Zoom Hybrid MMR before version 4.6.20211116.131_x86-64 Source: Reported by Natalie Silvanovich of Google Project Zero
	ZSB-21019	11/24/2021	Buffer overflow in Zoom Client and other products	High	CVE-2021-34423
Severity: High CVSS Score: 7.3 CVSS Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Description: A buffer overflow vulnerability was discovered in the products listed in the “Affected Products'' section of this bulletin. This can potentially allow a malicious actor to crash the service or application, or leverage this vulnerability to execute arbitrary code. Zoom has addressed this issue in the latest releases of the products listed in the section below. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates. Affected Products: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.8.4 Zoom Client for Meetings for Blackberry (for Android and iOS) before version 5.8.1 Zoom Client for Meetings for intune (for Android and iOS) before version 5.8.4 Zoom Client for Meetings for Chrome OS before version 5.0.1 Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows) before version 5.8.3 Controllers for Zoom Rooms (for Android, iOS, and Windows) before version 5.8.3 Zoom VDI Windows Meeting Client before version 5.8.4 Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64) before version 5.8.4.21112 Zoom VDI Citrix Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112 Zoom VDI VMware Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112 Zoom Meeting SDK for Android before version 5.7.6.1922 Zoom Meeting SDK for iOS before version 5.7.6.1082 Zoom Meeting SDK for macOS before version 5.7.6.1340 Zoom Meeting SDK for Windows before version 5.7.6.1081 Zoom Video SDK (for Android, iOS, macOS, and Windows) before version 1.1.2 Zoom On-Premise Meeting Connector Controller before version 4.8.12.20211115 Zoom On-Premise Meeting Connector MMR before version 4.8.12.20211115 Zoom On-Premise Recording Connector before version 5.1.0.65.20211116 Zoom On-Premise Virtual Room Connector before version 4.4.7266.20211117 Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5692.20211117 Zoom Hybrid Zproxy before version 1.0.1058.20211116 Zoom Hybrid MMR before version 4.6.20211116.131_x86-64 Source: Source: Reported by Natalie Silvanovich of Google Project Zero
	ZSB-21018	11/09/2021	Path traversal of file names in Keybase Client for Windows	High	CVE-2021-34422
Severity: High CVSS Score: 7.2 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Description: The Keybase Client for Windows before version 5.7.0 contains a path traversal vulnerability when checking the name of a file uploaded to a team folder. A malicious user could upload a file to a shared folder with a specially crafted file name which could allow a user to execute an application which was not intended on their host machine. If a malicious user leveraged this issue with the public folder sharing feature of the Keybase client, this could lead to remote code execution. Keybase addressed this issue in the 5.7.0 Keybase Client for Windows release. Users can help keep themselves secure by applying current updates or downloading the latest Keybase software with all current security updates from https://keybase.io/download. Affected Products: Keybase Client for Windows before version 5.7.0 Source: Reported by m4t35z
	ZSB-21017	11/09/2021	Retained exploded messages in Keybase clients for Android and iOS	Low	CVE-2021-34421
Severity: Low CVSS Score: 3.7 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Description: The Keybase Client for Android before version 5.8.0 and the Keybase Client for iOS before version 5.8.0 fails to properly remove exploded messages initiated by a user if the receiving user places the chat session in the background while the sending user explodes the messages. This could lead to disclosure of sensitive information which was meant to be deleted from the customer’s device. Keybase addressed this issue in the 5.8.0 Keybase Client for Android and the 5.8.0 Keybase Client for iOS releases. Users can help keep themselves secure by applying current updates or downloading the latest Keybase software with all current security updates from https://keybase.io/download. Affected Products: All Keybase Client for Android before version 5.8.0 All Keybase Client for iOS before version 5.8.0 Source: Reported by Olivia O'Hara, John Jackson, Jackson Henry, and Robert Willis
	ZSB-21016	11/09/2021	Zoom Windows installation executable signature bypass	Medium	CVE-2021-34420
Severity: Medium CVSS Score: 4.7 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N Description: The Zoom Client for Meetings for Windows installer before version 5.5.4 does not properly verify the signature of files with .msi, .ps1, and .bat extensions. This could lead to a malicious actor installing malicious software on a customer’s computer. Zoom addressed this issue in the 5.5.4 Zoom Client for Meetings for Windows release. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Zoom Client for Meetings for Windows before version 5.5.4 Source: Reported by Laurent Delosieres of ManoMano
	ZSB-21015	11/09/2021	HTML injection in Zoom Linux client	Low	CVE-2021-34419
Severity: Low CVSS Score: 3.7 CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Description: In the Zoom Client for Meetings for Ubuntu Linux before version 5.1.0, there is an HTML injection flaw when sending a remote control request to a user in the process of in-meeting screen sharing. This could allow meeting participants to be targeted for social engineering attacks. Zoom addressed this issue in the 5.1.0 Zoom Client for Meetings for Ubuntu Linux release. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download Affected Products: Zoom Client for Meetings for Ubuntu Linux before version 5.1.0 Source: Reported by Danny de Weille and Rick Verdoes of hackdefense
	ZSB-21014	11/09/2021	Pre-auth Null pointer crash in on-premise web console	Medium	CVE-2021-34418
Severity: Medium CVSS Score: 4.0 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Description: The login service of the web console for the products listed in the “Affected Products” section of this bulletin, fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service. Affected Products: Zoom On-Premise Meeting Connector Controller before version 4.6.239.20200613 Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613 Zoom On-Premise Recording Connector before version 3.8.42.20200905 Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612 Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 Source: Reported by Jeremy Brown
	ZSB-21013	11/09/2021	Authenticated remote command execution with root privileges via web console in MMR	High	CVE-2021-34417
Severity: High CVSS Score: 7.9 CVSS Vector String: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N Description: The network proxy page on the web portal for the products listed in the “Affected Products” section of this bulletin, fails to validate input sent in requests to set the network proxy password. This could lead to remote command injection by a web portal administrator. Affected Products: Zoom On-Premise Meeting Connector Controller before version 4.6.365.20210703 Zoom On-Premise Meeting Connector MMR before version 4.6.365.20210703 Zoom On-Premise Recording Connector before version 3.8.45.20210703 Zoom On-Premise Virtual Room Connector before version 4.4.6868.20210703 Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5496.20210703 Source: Reported by Jeremy Brown
	ZSB-21012	09/30/2021	Remote Code Execution against On-Prem Images via webportal	Medium	CVE-2021-34416
Severity: Medium CVSS Score: 5.5 CVSS Vector String: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N Description: The network address administrative settings web portal for the Zoom on-premise Meeting Connector before version 4.6.360.20210325, Zoom on-premise Meeting Connector MMR before version 4.6.360.20210325, Zoom on-premise Recording Connector before version 3.8.44.20210326, Zoom on-premise Virtual Room Connector before version 4.4.6752.20210326, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fails to validate input sent in requests to update the network configuration, which could lead to remote command injection on the on-premise image by the web portal administrators. Affected Products: Zoom on-premise Meeting Connector before version 4.6.360.20210325 Zoom on-premise Meeting Connector MMR before version 4.6.360.20210325 Zoom on-premise Recording Connector before version 3.8.44.20210326 Zoom on-premise Virtual Room Connector before version 4.4.6752.20210326 Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 Source: Reported by Egor Dimitrenko of Positive Technologies
	ZSB-21011	09/30/2021	ZC crash using a PDU which causes many allocations	High	CVE-2021-34415
Severity: High CVSS Score: 7.5 CVSS Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Description: The Zone Controller service in the Zoom On-Premise Meeting Connector Controller before version 4.6.358.20210205 does not verify the cnt field sent in incoming network packets, which leads to exhaustion of resources and system crash. Affected Products: Zoom On-Premise Meeting Connector Controller before version 4.6.358.20210205 Source: Reported by Nikita Abramov of Positive Technologies
	ZSB-21010	09/30/2021	Remote Code Execution against Meeting Connector server via webportal network proxy configuration	Medium	CVE-2021-34414
Severity: Medium CVSS Score: 7.2 CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Description: The network proxy page on the web portal for the Zoom on-premise Meeting Connector Controller before version 4.6.348.20201217, Zoom on-premise Meeting Connector MMR before version 4.6.348.20201217, Zoom on-premise Recording Connector before version 3.8.42.20200905, Zoom on-premise Virtual Room Connector before version 4.4.6620.20201110, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fail to validate input sent in requests to update the network proxy configuration, which could lead to remote command injection on the on-premise image by a web portal administrator. Affected Products: Zoom on-premise Meeting Connector Controller before version 4.6.348.20201217 Zoom on-premise Meeting Connector MMR before version 4.6.348.20201217 Zoom on-premise Recording Connector before version 3.8.42.20200905 Zoom on-premise Virtual Room Connector before version 4.4.6620.20201110 Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 Source: Reported by Egor Dimitrenko of Positive Technologies
	ZSB-21009	09/30/2021	Zoom macOS Outlook Plugin Installer Local Privilege Escalation	Low	CVE-2021-34413
Severity: Low CVSS Score: 2.8 CVSS Vector String: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N Description: All versions of the Zoom Plugin for Microsoft Outlook for macOS before 5.3.52553.0918 contain a Time-of-check Time-of-use (TOC/TOU) vulnerability during the plugin installation process. This could allow a standard user to write their own malicious application to the plugin directory, allowing the malicious application to execute in a privileged context. Affected Products: All versions of the Zoom Plugin for Microsoft Outlook for macOS before 5.3.52553.0918 Source: Reported by the Lockheed Martin Red Team
	ZSB-21008	09/30/2021	Zoom for Windows Installer Local Privilege Escalation	Medium	CVE-2021-34412
Severity: Medium CVSS Score: 4.4 CVSS Vector String: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Description: During the installation process for all versions of the Zoom Client for Meetings for Windows before 5.4.0, it is possible to launch Internet Explorer. If the installer was launched with elevated privileges such as by SCCM this can result in a local privilege escalation. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for Windows before version 5.4.0 Source: Reported by the Lockheed Martin Red Team
	ZSB-21007	09/30/2021	Zoom Rooms Installer Local Privilege Escalation	Medium	CVE-2021-34411
Severity: Medium CVSS Score: 4.4 CVSS Vector String: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Description: During the installation process forZoom Rooms for Conference Room for Windows before version 5.3.0 it is possible to launch Internet Explorer with elevated privileges. If the installer was launched with elevated privileges such as by SCCM this can result in a local privilege escalation. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Rooms for Conference Room for Windows before version 5.3.0 Zoom Rooms for Conference before version 5.1.0 Source: Reported by the Lockheed Martin Red Team
	ZSB-21004	09/30/2021	Zoom MSI Installer Elevated Write Using A Junction	High	CVE-2021-34408
Severity: High CVSS Score: 7.0 CVSS Vector String: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Description: A user-writable directory created during the installation of the Zoom Client for Meetings for Windows version prior to version 5.3.2 can be redirected to another location using a junction. This would allow an attacker to overwrite files that a limited user would otherwise be unable to modify. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Client for Meetings for Windows prior to version 5.3.2 Source: Reported by the Lockheed Martin Red Team
	ZSB-21003	09/30/2021	Windows Zoom Installer Digital Signature Bypass	High	CVE-2021-33907
Severity: High CVSS Score: 7.0 CVSS Vector String: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H/CR:H/IR:H/AR:H/MAV:L/MAC:H/MPR:N/MUI:R/MS:U/MC:H/MI:H/MA:H Description: The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All versions of the Zoom Client for Meetings for Windows before version 5.3.0 Source: Reported by the Lockheed Martin Red Team
	ZSB-21002	08/13/2021	Heap overflow from static buffer unchecked write from XMPP message	High	CVE-2021-30480
Severity: High CVSS Score: 8.1 CVSS Vector String: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/CR:H/IR:H/AR:H/MAV:N/MAC:H/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H Description: A heap based buffer overflow exists in all desktop versions of the Zoom Client for Meetings before version 5.6.3. This Finding was reported to Zoom as a part of 2021 Pwn20wn Vancouver. The attack chain demonstrated during Pwn20wn was mitigated in a server-side change in Zoom’s infrastructure on 2021-04-09. When combined with two other issues reported during Pwn20wn - improper URL validation when sending an XMPP message to access a Zoom Marketplace app URL and incorrect URL validation when displaying a GIPHY image - a malicious user can achieve remote code execution on a target’s computer. The target must have previously accepted a Connection Request from the malicious user or be in a multi-user chat with the malicious user for this attack to succeed. The attack chain demonstrated in Pwn20wn can be highly visible to targets, causing multiple client notifications to occur. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All desktop versions of the Zoom Client for Meetings before 5.6.3 Source: Reported by Daan Keuper and Thijs Alkemade from Computest via the Zero Day Initiative
	ZSB-21001	03/26/2021	Application Window Screen Sharing Functionality	Medium	CVE-2021-28133
Severity: Medium CVSS Score: 5.7 CVSS Vector String: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N Description: A vulnerability affected the Zoom Windows and Linux Clients’ share screen functionality when sharing individual application windows, in which screen contents of applications which are not explicitly shared by the screen-sharing users may be seen by other meeting participants for a brief moment if the “sharer” is minimizing, maximizing, or closing another window. Zoom introduced several new security mitigations in Zoom Windows Client version 5.6 that reduce the possibility of this issue occurring for Windows users. We are continuing to work on additional measures to resolve this issue across all affected platforms. Zoom also resolved the issue for Ubuntu users on March 1, 2021 in Zoom Linux Client version 5.5.4. Users can apply current updates or download the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: All Windows Zoom Client versions Linux Zoom Client versions prior to 5.5.4 on Ubuntu All Linux Client versions on other supported distributions Source: Discovered by Michael Stramez and Matthias Deeg.
	ZSB-20002	08/14/2020	Windows DLL in the Zoom Sharing Service	High	CVE-2020-9767
Severity: High CVSS Score: 7.8 CVSS Vector String: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Description: A vulnerability related to Dynamic-link Library (“DLL”) loading in the Zoom Sharing Service could allow a local Windows user to escalate privileges to those of the NT AUTHORITY/SYSTEM user. The vulnerability is due to insufficient signature checks of dynamically loaded DLLs when loading a signed executable. An attacker could exploit this vulnerability by injecting a malicious DLL into a signed Zoom executable and using it to launch processes with elevated permissions. Zoom addressed this issue in the 5.0.4 client release. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Windows installer (ZoomInstallerFull.msi) versions prior to 5.0.4 Source: Connor Scott of Context Information Security
	ZSB-20001	05/04/2020	Zoom IT Installer for Windows	High	CVE-2020-11443
Severity: High CVSS Score: Base: 8.4 CVSS Vector String: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H Description: A vulnerability in how the Zoom Windows installer handles junctions when deleting files could allow a local Windows user to delete files otherwise not deletable by the user. The vulnerability is due to insufficient checking for junctions in the directory from which the installer deletes files, which is writable by standard users. A malicious local user could exploit this vulnerability by creating a junction in the affected directory that points to protected system files or other files to which the user does not have permissions. Upon running the Zoom Windows installer with elevated permissions, as is the case when it is run through managed deployment software, those files would get deleted from the system. Zoom addressed this issue in the 4.6.10 client release. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom Windows installer (ZoomInstallerFull.msi) versions prior to 4.6.10 Source: Thanks to the Lockheed Martin Red Team.
	ZSB-19003	07/12/2019	ZoomOpener daemon	High	CVE-2019-13567
Severity: High CVSS Score: Base: 7.5 CVSS Vector String: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Description: A vulnerability in the Zoom macOS client could allow an attacker to download malicious software to a victim's device. The vulnerability is due to improper input validation and validation of downloaded software in the ZoomOpener helper application. An attacker could exploit the vulnerability to prompt a victim's device to download files on the attacker's behalf. A successful exploit is only possible if the victim previously uninstalled the Zoom Client. Zoom addressed this issue in the 4.4.52595.0425 client release. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom macOS client prior to version 4.4.52595.0425 and after version 4.1.27507.0627 Source: Unknown.
	ZSB-19002	07/09/2019	Default Video Setting	Low	CVE-2019-13450
Severity: Low CVSS Score: Base: 3.1 CVSS Vector String: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Description: A vulnerability in the macOS Zoom and RingCentral clients could allow a remote, unauthenticated attacker to force a user to join a video call with the video camera active. The vulnerability is due to insufficient authorization controls to check which systems may communicate with the local Zoom Web server running on port 19421. An attacker could exploit this vulnerability by creating a malicious website that causes the Zoom client to automatically join a meeting set up by the attacker. Zoom implemented a new Video Preview dialog that is presented to the user before joining a meeting in Client version 4.4.5 published July 14, 2019. This dialog enables the user to join the meeting with or without video enabled and requires the user to set their desired default behavior for video. Zoom urges customers to install the latest Zoom Client release available at https://zoom.us/download. Affected Products: Zoom macOS Client prior to version 4.4.5 RingCentral macOS client prior to version 4.4.5 Source: Discovered by Jonathan Leitschuh.
	ZSB-19001	07/09/2019	Denial of service attack - macOS	Low	CVE-2019-13449
Severity: Low CVSS Score: Base: 3.1 CVSS Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Description: A vulnerability in the macOS Zoom client could allow a remote, unauthenticated attacker to trigger a denial-of-service condition on a victim's system. The vulnerability is due to insufficient authorization controls to check which systems may communicate with the local Zoom Web server running on port 19421. An attacker could exploit this vulnerability by creating a malicious website that causes the Zoom client to repeatedly try to join a meeting with an invalid meeting ID. The infinite loop causes the Zoom client to become inoperative and can impact performance of the system on which it runs. Zoom released version 4.4.2-hotfix of the macOS client on April 28, 2019 to address the issue. Users can help keep themselves secure by applying current updates or downloading the latest Zoom software with all current security updates from https://zoom.us/download. Affected Products: Zoom macOS Client prior to version 4.4.5 RingCentral macOS client prior to version 4.4.5 Source: Discovered by Jonathan Leitschuh.
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