Zoom Client for Meetings state issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical has been found in Zoom Client for Meetings, Rooms for Conference Room, Controllers for Zoom Rooms, VDI, SDK, Meeting SDK, Video SDK, On-Premise Meeting Connector Controller, On-Premise Meeting Connector MMR, On-Premise Recording Connector, On-Premise Virtual Room Connector, On-Premise Virtual Room Connector Load Balancer, Hybrid Zproxy and Hybrid MMR (Unified Communication Software). Affected is an unknown code. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-371. This is going to have an impact on confidentiality. CVE summarizes:

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 before version 5.8.4, Zoom Meeting SDK for Android before version, Zoom Meeting SDK for iOS before version, Zoom Meeting SDK for macOS before version, Zoom Meeting SDK for Windows before version, Zoom Video SDK (for Android, iOS, macOS, and Windows) before version 1.1.2, Zoom on-premise Meeting Connector before version, Zoom on-premise Meeting Connector MMR before version, Zoom on-premise Recording Connector before version, 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.

The weakness was shared 11/25/2021. The advisory is available at explore.zoom.us. This vulnerability is traded as CVE-2021-34424 since 06/09/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/27/2021).

Upgrading eliminates this vulnerability.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (Zoom Video Communications, Inc.): 🔒



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Privilege escalation
CWE: CWE-371
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: explore.zoom.us


06/09/2021 CVE assigned
11/25/2021 +169 days Advisory disclosed
11/25/2021 +0 days VulDB entry created
11/27/2021 +2 days VulDB last update


Advisory: explore.zoom.us
Status: Confirmed

CVE: CVE-2021-34424 (🔒)


Created: 11/25/2021 07:41 AM
Updated: 11/27/2021 09:28 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍


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