CVE-2025-14322

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CVSS 3.1

8.0 high

EPSS

<1%p27

Published

Dec 9, 2025 (Dec 9, 2025)

Modified

Jun 17, 2026

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

Vendors: mozilla
Products: firefox, thunderbird
Weakness: CWE-754
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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