Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
History

Mon, 19 Oct 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457

Mon, 19 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-908
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'}


Sat, 17 Oct 2026 08:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457

Wed, 14 Oct 2026 13:45:00 +0000

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

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

Type Values Removed Values Added
Weaknesses CWE-457

Tue, 13 Oct 2026 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457

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

Type Values Removed Values Added
Description Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. Sandbox escape due to uninitialized memory in the DOM: Web Serial 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 Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.
Title Sandbox escape due to uninitialized memory in the DOM: Web Serial component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-10-13T12:29:27.405Z

Updated: 2026-10-19T12:09:25.531Z

Reserved: 2026-10-13T00:29:50.232Z

Link: CVE-2026-109745

cve-icon Vulnrichment

Updated: 2026-10-19T12:07:12.602Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T13:17:25.360

Modified: 2026-10-19T13:16:54.080

Link: CVE-2026-109745

cve-icon Redhat

No data.