CVE-2025-11709

CriticalCVSS 9.8/10Last modified Oct 23, 2026

Description

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
Mozilla	Firefox	—
Mozilla	Thunderbird	—

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1989127Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-81/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-82/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-83/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-84/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-85/Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html
https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html

Timeline

Published: Oct 14, 2025
Last modified: Oct 23, 2026
NVD status: Modified

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