Fiche vulnérabilité
CVE-2025-2486 : faille élevée tianocore edk2 (CVSS 8.8)
Description
The Ubuntu edk2 UEFI firmware packages accidentally allowed the UEFI Shell to be accessed in Secure Boot environments, possibly allowing bypass of Secure Boot constraints. Versions 2024.05-2ubuntu0.3 and 2024.02-2ubuntu0.3 disable the Shell. Some previous versions inserted a secure-boot-based decision to continue running inside the Shell itself, which is believed to be sufficient to enforce Secure Boot restrictions. This is an additional repair on top of the incomplete fix for CVE-2023-48733.
En bref
- Sévérité
- Élevée (CVSS 8.8)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 26 nov. 2025
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- tianocore edk2