SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-53413

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.

HIGH 8.3EPSS 5.60%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (5.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
8.3 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS
5.60% probability · 92th percentile
CISA KEV
Not listed
Weakness
CWE-787
Source
security@zoom.us

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.