CVE-2025-14326

Use-after-free in the Audio/Video: GMP component

State: Published
Severity: 9.8 Critical
Published: Dec 9, 2025
Updated: Apr 13, 2026
Reserved: Dec 9, 2025

Description

Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
FirefoxMozilla	146 and laterNot affected
ThunderbirdMozilla	146 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1840666
https://www.mozilla.org/security/advisories/mfsa2025-92/
https://www.mozilla.org/security/advisories/mfsa2025-95/

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