Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
History

Thu, 15 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 15 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}


Tue, 13 Oct 2026 21:30:00 +0000

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

Tue, 13 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362

Tue, 13 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Description Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
References

Tue, 13 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
Description Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.
Title Race condition in the XPCOM component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-10-13T12:29:34.739Z

Updated: 2026-10-15T19:58:19.102Z

Reserved: 2026-10-13T00:49:06.510Z

Link: CVE-2026-109776

cve-icon Vulnrichment

Updated: 2026-10-15T19:58:02.605Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T13:17:28.507

Modified: 2026-10-15T20:17:08.393

Link: CVE-2026-109776

cve-icon Redhat

No data.