Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
History

Sat, 17 Oct 2026 07:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

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

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

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


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

Type Values Removed Values Added
Description Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158. Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
References

Tue, 13 Oct 2026 16:30:00 +0000

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

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

Type Values Removed Values Added
Description Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158.
Title Sandbox escape in the DOM: Content Processes component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-10-13T12:29:30.078Z

Updated: 2026-10-15T19:55:51.874Z

Reserved: 2026-10-13T00:29:59.501Z

Link: CVE-2026-109755

cve-icon Vulnrichment

Updated: 2026-10-15T19:55:40.770Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T13:17:26.417

Modified: 2026-10-15T20:17:08.070

Link: CVE-2026-109755

cve-icon Redhat

No data.