Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
History

Wed, 02 Sep 2026 05:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787

Wed, 02 Sep 2026 00:15:00 +0000

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

None

threat_severity

Important


Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2. Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
First Time appeared Mozilla
Mozilla firefox
Weaknesses CWE-763
Vendors & Products Mozilla
Mozilla firefox
References
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, 01 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787

Tue, 01 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
Description Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.
Title Privilege escalation due to invalid pointer in the Graphics component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-09-02T03:55:25.128Z

Reserved: 2026-09-01T07:25:34.092Z

Link: CVE-2026-84131

cve-icon Vulnrichment

Updated: 2026-09-01T13:44:55.535Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-01T13:20:07.123

Modified: 2026-09-02T04:18:05.223

Link: CVE-2026-84131

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-01T12:18:42Z

Links: CVE-2026-84131 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T05:00:13Z