CVE-2025-5262

State: Published
Severity: 7.5 High
Published: May 27, 2025
Updated: Aug 25, 2025
Reserved: May 27, 2025

Description

A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 139 and Thunderbird < 128.11.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-415 Double Free

Affected Products

Product	Versions
ThunderbirdMozilla	before 139Affected
ThunderbirdMozilla	before 128.11Affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1962421
https://www.mozilla.org/security/advisories/mfsa2025-45/
https://www.mozilla.org/security/advisories/mfsa2025-46/

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