Fiche vulnérabilité
CVE-2026-5735 : faille critique mozilla firefox (CVSS 9.8)
Description
Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.
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
- 7 avr. 2026
- Dernière mise à jour
- 15 juil. 2026
Produits concernés
- mozilla firefox
- mozilla thunderbird
Références
- Fiche CVE-2026-5735 sur le NVD (NIST)
- bugzilla.mozilla.org/buglist.cgi
- mozilla.org/security/advisories/mfsa2026-25/
- mozilla.org/security/advisories/mfsa2026-28/
- access.redhat.com/security/cve/CVE-2026-5735
- bugzilla.redhat.com/show_bug.cgi
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5735.json