CVE-2025-5262

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1962421	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-45/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-46/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:thunderbird:::::esr:::*
	cpe:2.3:a:mozilla:thunderbird:::::-:::*

History

No history.

Information

Published : 2025-05-27 13:15

Updated : 2025-09-19 17:18

NVD link : CVE-2025-5262

Mitre link : CVE-2025-5262

CVE.ORG link : CVE-2025-5262

JSON object : View

Products Affected

mozilla

thunderbird

CWE

CWE-415

Double Free

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