CVE-2026-92013

Published: Sep 15, 2026Modified: Sep 16, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16.

Related CWEs

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (7)

https://bugzilla.mozilla.org/show_bug.cgi?id=2058078

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-90/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-91/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-92/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-93/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-94/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-95/

Source: security@mozilla.org

Timeline

No history available yet.