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HIGHCVE-2026-8968Published Modified CNA mozilla

CVE-2026-8968: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component

Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Metrics

CVSS v3.1
7.5
Severity
HIGH
Fixed in
140.11
Affected Products
2

Fix available

140.11151
Affected packages
  • Mozilla / Firefox
    Fixed in 140.11, 151
  • Mozilla / Thunderbird
    Fixed in 140.11, 151
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2026-8968: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component | HarborGuard CVE