Fiche vulnérabilité
CVE-2025-11721 : faille critique mozilla firefox (CVSS 9.8)
Description
Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144 and Thunderbird 144.
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
- 14 oct. 2025
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- mozilla firefox
- mozilla thunderbird