Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.

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Fixes

Solution

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Workaround

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History

Wed, 30 Sep 2026 03:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

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 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

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

Type Values Removed Values Added
Weaknesses CWE-269
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 in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.
Title Privilege escalation in the DLL Services component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-09-30T03:56:08.425Z

Reserved: 2026-09-26T19:17:46.301Z

Link: CVE-2026-100801

cve-icon Vulnrichment

Updated: 2026-09-29T13:36:13.097Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T13:17:45.180

Modified: 2026-09-30T04:18:14.087

Link: CVE-2026-100801

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T08:00:07Z

Weaknesses