Description
Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Published: 2026-10-13
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4836-1 firefox-esr security update
Debian DSA Debian DSA DSA-6560-1 firefox-esr security update
History

Tue, 20 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

Mon, 19 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

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


Sat, 17 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

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

Type Values Removed Values Added
Weaknesses CWE-285

Tue, 13 Oct 2026 21:45:00 +0000

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

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

Type Values Removed Values Added
Description Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. Spoofing issue 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 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

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

Type Values Removed Values Added
Description Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.
Title Spoofing issue in the DOM: Web Serial component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-19T20:35:28.223Z

Reserved: 2026-10-13T00:48:51.726Z

Link: CVE-2026-109770

cve-icon Vulnrichment

Updated: 2026-10-19T20:35:15.495Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T13:17:27.887

Modified: 2026-10-19T21:17:05.360

Link: CVE-2026-109770

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T06:30:10Z

Weaknesses