Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
History

Wed, 22 Apr 2026 15:30:00 +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

Wed, 22 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-358
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Description Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150. Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
References

Tue, 21 Apr 2026 16:45:00 +0000

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

Tue, 21 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 21 Apr 2026 13:15:00 +0000

Type Values Removed Values Added
Description Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150.
Title Mitigation bypass in the DOM: Security component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-04-21T12:41:05.957Z

Updated: 2026-04-21T23:35:09.351Z

Reserved: 2026-04-21T12:41:05.633Z

Link: CVE-2026-6774

cve-icon Vulnrichment

Updated: 2026-04-21T14:00:58.738Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-21T13:16:23.173

Modified: 2026-04-22T15:17:38.297

Link: CVE-2026-6774

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-21T12:41:05Z

Links: CVE-2026-6774 - Bugzilla