Vulnerability · NVD

CVE-2025-5262

CVE-2025-5262, high severity (CVSS 7.5): 1 tracked app concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 7.5
Exploitation: 0.4 %
Tracked apps: 1
Still exposed: 0

Published on 2025-05-27

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 0.45% exploit very unlikely percentile 36.6%

Tracked apps referencing this CVE

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

Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <128.11.0 Fixed in 128.11.0 Latest tracked 157.0.1 patched

Observed affected builds (87)

115.14.0 115.13.0 115.12.2 115.12.1 115.11.1 115.11.0 115.10.2 115.10.1 115.10.0 115.9.0 115.8.1 115.8.0 115.7.0 115.6.1 115.6.0 115.5.2 115.5.1 115.4.2 115.4.1 115.3.3 115.3.2 115.3.1 115.3.0 115.2.3 115.2.2 115.0 102.15.0 102.14.0 102.13.0 102.12.0 +57 · see history

Vulnerable CPE configurations (2)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<128.11.0	cpe:2.3:a:mozilla:thunderbird:::::esr:::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<139.0	cpe:2.3:a:mozilla:thunderbird:::::-:::*

View on NVD ↗ Advisory · www.mozilla.org

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