Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
History

Tue, 13 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Vendors & Products Mozilla thunderbird

Tue, 06 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Important


Wed, 30 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 157. Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
References

Tue, 29 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 29 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 157.
Title Privilege escalation due to use-after-free in the Graphics: WebGPU component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-09-29T12:35:55.919Z

Updated: 2026-09-30T17:14:43.220Z

Reserved: 2026-09-26T19:15:18.342Z

Link: CVE-2026-100761

cve-icon Vulnrichment

Updated: 2026-09-29T13:21:04.202Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T13:17:40.390

Modified: 2026-10-13T20:29:06.187

Link: CVE-2026-100761

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-29T12:35:55Z

Links: CVE-2026-100761 - Bugzilla