CVE-2026-118027

CriticalCVSS 9.1/10Last modified Nov 4, 2026

Description

Frame poisoning in the Layout component. This vulnerability was fixed in Firefox ESR 115.44.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-451

Affected software

No affected versions have been published.

Timeline

Published
Oct 27, 2026
Last modified
Nov 4, 2026
NVD status
Deferred

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CVE-2026-118027: Critical severity, CVSS 9.1 | Vulnix