CVE-2026-92051

CriticalCVSS 9.1/10Last modified Oct 5, 2026

Description

Spoofing issue due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published
Sep 15, 2026
Last modified
Oct 5, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-920528.8Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, FirefoCVE-2026-920538.8Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156CVE-2026-920548.8Privilege escalation in the Memory component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and ThunderbiCVE-2026-920558.8Privilege escalation in the DevTools component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and ThunderCVE-2026-920568.8Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and ThunderCVE-2026-920579.1Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, andCVE-2026-920588.8Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 1CVE-2026-920599.3Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156,CVE-2026-920608.8Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and TCVE-2026-920619.8Incorrect boundary conditions in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 156 and Thunderbird 156CVE-2026-920628.8Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and CVE-2026-920636.5Denial-of-service in the Audio/Video component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVE-2026-92051: Critical severity, CVSS 9.1 | Vulnix