CVE-2026-8946
Incorrect boundary conditions in the Audio/Video: Web Codecs component.
Published May 19, 2026 · updated Oct 14, 2026 · mozilla firefox
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Timeline
Detection, updates, and resolution for this record.
May 19, 2026 · NIST NVD
Detected
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Oct 14, 2026 · NIST NVD
Updated
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Affected
- cpe mozilla/firefoxversion unspecified
- cpe mozilla/thunderbirdversion unspecified
Sources
- CVE.orgCVE-2026-8946
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-8946
30-day exploitation probability 0.6%
first.org - NIST NVDCVE-2026-8946
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
nvd.nist.gov