Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
History

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

Type Values Removed Values Added
Description Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11. Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
References

Tue, 19 May 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Tue, 19 May 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

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

Type Values Removed Values Added
Weaknesses CWE-269
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

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
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 Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.
Title Privilege escalation in the Security component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-05-19T17:10:51.886Z

Reserved: 2026-05-19T12:30:16.497Z

Link: CVE-2026-8970

cve-icon Vulnrichment

Updated: 2026-05-19T14:21:47.673Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-19T14:16:53.500

Modified: 2026-05-19T15:16:35.370

Link: CVE-2026-8970

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T17:15:10Z