Detections
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CVE-2026-53413

high

Description

Missing bounds check in the annotator function of Zoom Clients allows buffer over-write, which may allow a meeting participant to achieve remote code execution of another participant via network access.

References

https://www.securityweek.com/zoom-patches-zero-click-code-execution-vulnerability/

https://thehackernews.com/2026/08/zoom-annotation-flaws-could-let-meeting.html

https://securityaffairs.com/197042/hacking/zoom-patches-zoomsday-zero-click-flaw-enabling-remote-code-execution.html

https://www.zoom.com/en/trust/security-bulletin/zsb-26015

Details

Source: Mitre, NVD

Published: 2026-08-11

Updated: 2026-08-11

Named Vulnerability: Zoomsday

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.3

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Severity: High

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored