CVE-2026-53414: CWE-126 Buffer over-read in Zoom Communications Zoom Clients
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.
AI Analysis
Technical Summary
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.
CVE-2026-53414: CWE-126 Buffer over-read in Zoom Communications 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
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.
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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