What is GHSA-623g-7mmv-6cvj?

GHSA-623g-7mmv-6cvj is a security advisory published by GitHub Security Advisories with High severity. Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was...

Which CVE IDs does GHSA-623g-7mmv-6cvj cover?

GHSA-623g-7mmv-6cvj covers the following CVE IDs: CVE-2026-124887. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-623g-7mmv-6cvj?

GHSA-623g-7mmv-6cvj has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-623g-7mmv-6cvjHighCVSS 8.8

Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was...

Vendor

GitHub Security Advisories

Published

November 10, 2026

Last Modified

November 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-124887 →

📋 Description

Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.

🔗 References (7)

https://nvd.nist.gov/vuln/detail/CVE-2026-124887
https://bugzilla.mozilla.org/show_bug.cgi?id=2082024
https://www.mozilla.org/security/advisories/mfsa2026-125
https://www.mozilla.org/security/advisories/mfsa2026-127
https://www.mozilla.org/security/advisories/mfsa2026-128
https://www.mozilla.org/security/advisories/mfsa2026-129
https://github.com/advisories/GHSA-623g-7mmv-6cvj