CVE-2021-34424

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2021
Source publication: Nov 24, 2021
Source updated: Sep 16, 2024
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

Process memory exposure in Zoom Client and other products

A vulnerability was discovered in the 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 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, and Zoom Hybrid MMR before version 4.6.20211116.131_x86-64 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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows)

Vendor: Zoom Video Communications Inc
Product: Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows)
Platforms: Unknown
Default status: Unknown

Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.4	Unavailable	None listed

Zoom Client for Meetings for Blackberry (for Android and iOS)

Vendor: Zoom Video Communications Inc
Product: Zoom Client for Meetings for Blackberry (for Android and iOS)
Platforms: Unknown
Default status: Unknown

Zoom Client for Meetings for Blackberry (for Android and iOS) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.1	Unavailable	None listed

Zoom Client for Meetings for intune (for Android and iOS)

Vendor: Zoom Video Communications Inc
Product: Zoom Client for Meetings for intune (for Android and iOS)
Platforms: Unknown
Default status: Unknown

Zoom Client for Meetings for intune (for Android and iOS) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.4	Unavailable	None listed

Zoom Client for Meetings for Chrome OS

Vendor: Zoom Video Communications Inc
Product: Zoom Client for Meetings for Chrome OS
Platforms: Unknown
Default status: Unknown

Zoom Client for Meetings for Chrome OS · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.0.1	Unavailable	None listed

Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows)

Vendor: Zoom Video Communications Inc
Product: Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows)
Platforms: Unknown
Default status: Unknown

Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.3	Unavailable	None listed

Controllers for Zoom Rooms (for Android, iOS, and Windows)

Vendor: Zoom Video Communications Inc
Product: Controllers for Zoom Rooms (for Android, iOS, and Windows)
Platforms: Unknown
Default status: Unknown

Controllers for Zoom Rooms (for Android, iOS, and Windows) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.3	Unavailable	None listed

Zoom VDI Windows Meeting Client

Vendor: Zoom Video Communications Inc
Product: Zoom VDI Windows Meeting Client
Platforms: Unknown
Default status: Unknown

Zoom VDI Windows Meeting Client · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.4	Unavailable	None listed

Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64)

Vendor: Zoom Video Communications Inc
Product: Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64)
Platforms: Unknown
Default status: Unknown

Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.4.21112	Unavailable	None listed

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)

Vendor: Zoom Video Communications Inc
Product: 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)
Platforms: Unknown
Default status: Unknown

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) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.4.21112	Unavailable	None listed

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)

Vendor: Zoom Video Communications Inc
Product: 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)
Platforms: Unknown
Default status: Unknown

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) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.8.4.21112	Unavailable	None listed

Zoom Meeting SDK for Android

Vendor: Zoom Video Communications Inc
Product: Zoom Meeting SDK for Android
Platforms: Unknown
Default status: Unknown

Zoom Meeting SDK for Android · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.7.6.1922	Unavailable	None listed

Zoom Meeting SDK for iOS

Vendor: Zoom Video Communications Inc
Product: Zoom Meeting SDK for iOS
Platforms: Unknown
Default status: Unknown

Zoom Meeting SDK for iOS · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.7.6.1082	Unavailable	None listed

Zoom Meeting SDK for macOS

Vendor: Zoom Video Communications Inc
Product: Zoom Meeting SDK for macOS
Platforms: Unknown
Default status: Unknown

Zoom Meeting SDK for macOS · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.7.6.1340	Unavailable	None listed

Zoom Meeting SDK for Windows

Vendor: Zoom Video Communications Inc
Product: Zoom Meeting SDK for Windows
Platforms: Unknown
Default status: Unknown

Zoom Meeting SDK for Windows · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.7.6.1081	Unavailable	None listed

Zoom Video SDK (for Android, iOS, macOS, and Windows)

Vendor: Zoom Video Communications Inc
Product: Zoom Video SDK (for Android, iOS, macOS, and Windows)
Platforms: Unknown
Default status: Unknown

Zoom Video SDK (for Android, iOS, macOS, and Windows) · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	1.1.2	Unavailable	None listed

Zoom on-premise Meeting Connector

Vendor: Zoom Video Communications Inc
Product: Zoom on-premise Meeting Connector
Platforms: Unknown
Default status: Unknown

Zoom on-premise Meeting Connector · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	4.8.12.20211115	Unavailable	None listed

Zoom on-premise Meeting Connector MMR

Vendor: Zoom Video Communications Inc
Product: Zoom on-premise Meeting Connector MMR
Platforms: Unknown
Default status: Unknown

Zoom on-premise Meeting Connector MMR · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	4.8.12.20211115	Unavailable	None listed

Zoom on-premise Recording Connector

Vendor: Zoom Video Communications Inc
Product: Zoom on-premise Recording Connector
Platforms: Unknown
Default status: Unknown

Zoom on-premise Recording Connector · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	5.1.0.65.20211116	Unavailable	None listed

Zoom on-premise Virtual Room Connector

Vendor: Zoom Video Communications Inc
Product: Zoom on-premise Virtual Room Connector
Platforms: Unknown
Default status: Unknown

Zoom on-premise Virtual Room Connector · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	4.4.7266.20211117	Unavailable	None listed

Zoom on-premise Virtual Room Connector Load Balancer

Vendor: Zoom Video Communications Inc
Product: Zoom on-premise Virtual Room Connector Load Balancer
Platforms: Unknown
Default status: Unknown

Zoom on-premise Virtual Room Connector Load Balancer · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	2.5.5692.20211117	Unavailable	None listed

Zoom Hybrid Zproxy

Vendor: Zoom Video Communications Inc
Product: Zoom Hybrid Zproxy
Platforms: Unknown
Default status: Unknown

Zoom Hybrid Zproxy · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	1.0.1058.20211116	Unavailable	None listed

Zoom Hybrid MMR

Vendor: Zoom Video Communications Inc
Product: Zoom Hybrid MMR
Platforms: Unknown
Default status: Unknown

Zoom Hybrid MMR · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
unspecified	`affected`	custom	4.6.20211116.131_x86-64	Unavailable	None listed