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CVE-2026-53414: CWE-126 Buffer over-read in Zoom Communications Zoom Clients

0
Medium
VulnerabilityCVE-2026-53414cvecve-2026-53414cwe-126
Published: 08/11/2026 (08/11/2026, 15:58:11 UTC)
Source: CVE Database V5
Vendor/Project: Zoom Communications
Product: Zoom Clients

Description

Missing bounds check in the annotator function of Zoom Clients allows buffer over-read, which may allow a meeting participant to conduct a denial of service on another participant via network access.

CVSS v3.1

Score 6.5medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/11/2026, 16:27:18 UTC

Technical Analysis

This vulnerability involves a missing bounds check in the annotator function of Zoom Clients, leading to a buffer over-read condition. An attacker who is a participant in a Zoom meeting can exploit this flaw remotely over the network to cause a denial of service against other participants. The CVSS 3.1 base score is 6.5, reflecting medium severity with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability (denial of service). No vendor advisory or patch information is currently available, and no affected versions are specified.

Potential Impact

The impact is a denial of service condition against Zoom meeting participants caused by a buffer over-read in the annotator function. There is no impact on confidentiality or integrity. The disruption affects availability of the Zoom client for targeted users during meetings.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with meeting participants and consider limiting annotation features or meeting participation to trusted users where possible.

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Technical Details

Data Version
5.2
Assigner Short Name
Zoom
Date Reserved
2026-06-09T10:18:05.660Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a7b49e7bf8831d53902c3b6

Added to database: 08/11/2026, 16:12:23 UTC

Last enriched: 08/11/2026, 16:27:18 UTC

Last updated: 08/12/2026, 00:00:58 UTC

Views: 8

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