Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 21 Aug 2026 12:15:00 +0000


Wed, 19 Aug 2026 16:45:00 +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, 18 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-264
CWE-284

Tue, 18 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154. Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
References

Tue, 18 Aug 2026 16:30:00 +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, 18 Aug 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-264
CWE-284

Tue, 18 Aug 2026 14:00:00 +0000

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

Tue, 18 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154.
Title Privilege escalation in the Application Update component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-08-21T03:55:25.864Z

Reserved: 2026-08-17T11:58:03.693Z

Link: CVE-2026-74952

cve-icon Vulnrichment

Updated: 2026-08-18T15:38:55.833Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-18T13:17:32.100

Modified: 2026-08-21T04:18:18.070

Link: CVE-2026-74952

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-18T12:23:36Z

Links: CVE-2026-74952 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T18:15:04Z

Weaknesses