How severe is CVE-2025-13026?

CVE-2025-13026 has a CVSS v3 score of 9.8 (CRITICAL).

CVE-2025-13026

Name: firefox
Author: mozilla

9.8CRITICAL

Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145 and Thunderbird < 145.

Published: 11/11/2025Updated: 11/19/2025

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145 and Thunderbird < 145.

AI AnalysisPowered by AI

Affected Products

mozillafirefox

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1994441
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-87/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-90/