Fiche vulnérabilité
CVE-2026-4696 : faille critique mozilla firefox (CVSS 9.8)
Description
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
En bref
- Sévérité
- Critique (CVSS 9.8)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 24 mars 2026
- Dernière mise à jour
- 15 juil. 2026
Produits concernés
- mozilla firefox
Références
- Fiche CVE-2026-4696 sur le NVD (NIST)
- bugzilla.mozilla.org/show_bug.cgi
- mozilla.org/security/advisories/mfsa2026-20/
- mozilla.org/security/advisories/mfsa2026-21/
- mozilla.org/security/advisories/mfsa2026-22/
- mozilla.org/security/advisories/mfsa2026-23/
- mozilla.org/security/advisories/mfsa2026-24/
- access.redhat.com/errata/RHSA-2026:5930
- access.redhat.com/errata/RHSA-2026:5931
- access.redhat.com/errata/RHSA-2026:5932
- access.redhat.com/errata/RHSA-2026:6188
- access.redhat.com/errata/RHSA-2026:6342
- access.redhat.com/errata/RHSA-2026:6917
- access.redhat.com/errata/RHSA-2026:7837
- access.redhat.com/errata/RHSA-2026:7838
- access.redhat.com/errata/RHSA-2026:7839