VULNERABILITY INTELLIGENCE

CVE-2026-4697

CVSS score7.5 HIGH
EPSS probability0.71%
CISA KEVNot currently listed
Published2026-03-24
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Weakness classification

  • CWE-754: Improper Check for Unusual or Exceptional Conditions
  • CWE-787: Out-of-bounds Write

Primary references