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Vulnerability · NVD

CVE-2025-5262

HIGH 7.5

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.

Attack vector : Network No privileges required No user interaction
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS 0.39% exploit very unlikely percentile 32.2%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Vulnerable CPE configurations (2)
Vendor Product Versions
mozilla thunderbird
All platforms (wildcard)
<128.11.0
mozilla thunderbird
All platforms (wildcard)
<139.0
View on NVD ↗ Advisory · www.mozilla.org