Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 20 May 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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'}


Wed, 20 May 2026 15:00:00 +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, 19 May 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Tue, 19 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151. Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
References

Tue, 19 May 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 19 May 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Tue, 19 May 2026 15:00:00 +0000

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

Tue, 19 May 2026 13:45:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151.
Title Privilege escalation in the Application Update component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-05-20T15:37:12.685Z

Reserved: 2026-05-19T12:29:44.424Z

Link: CVE-2026-8952

cve-icon Vulnrichment

Updated: 2026-05-19T14:18:26.966Z

cve-icon NVD

Status : Modified

Published: 2026-05-19T14:16:51.480

Modified: 2026-05-20T17:16:29.823

Link: CVE-2026-8952

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T17:45:36Z

Weaknesses