CVE-2026-8954

HIGH CVSS 7.5 View on NVD ↗

Description

Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Products

mozilla/firefox mozilla/thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2030747
https://www.mozilla.org/security/advisories/mfsa2026-46/
https://www.mozilla.org/security/advisories/mfsa2026-48/
https://www.mozilla.org/security/advisories/mfsa2026-50/
https://www.mozilla.org/security/advisories/mfsa2026-51/

Published: May 19, 2026 14:16 UTC Modified: May 19, 2026 18:42 UTC