CVE-2026-84126

MediumCVSS 4.3/10Last modified Sep 3, 2026

Description

Incorrect boundary conditions in the Layout: Grid component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-120

Affected software

No affected versions have been published.

Timeline

Published
Sep 1, 2026
Last modified
Sep 3, 2026
NVD status
Analyzed

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CVE-2026-84126: Medium severity, CVSS 4.3 | Vulnix