CVE-2026-8954

Timeline

Detection, updates, and resolution for this record.

1. May 19, 2026 · NIST NVD

   Detected

   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.

2. Oct 14, 2026 · NIST NVD

   Updated

   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.

Affected

• cpe mozilla/firefoxversion unspecified
• cpe mozilla/thunderbirdversion unspecified

Sources

• CVE.orgCVE-2026-8954

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2026-8954

  30-day exploitation probability 0.4%

  first.org
• NIST NVDCVE-2026-8954

  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.

  nvd.nist.gov

References

• Permissions Required · bugzilla.mozilla.org
• Vendor Advisory · mozilla.org
• Vendor Advisory · mozilla.org
• Vendor Advisory · mozilla.org
• Vendor Advisory · mozilla.org