CVE-2025-5262
Last modified
CVE-2025-5262 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | < 128.11.0 |
| Mozilla | Thunderbird | < 139.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1962421Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-45/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-46/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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