CVE-2025-2486 (GCVE-0-2025-2486)

Vulnerability from cvelistv5 – Published: 2025-11-26 17:33 – Updated: 2025-11-26 18:25
VLAI
Title
UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu
Summary
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.
Severity
3.7 (Low)
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:U
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-26 18:25 UTC
CWE
Assigner
canonical CNA under the mitre root
CNA scorecard B 82/100 over 58 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Ubuntu edk2 Affected: 2024.05 , < 2024.05-2ubuntu0.3 (dpkg)
Affected: 2024.02 , < 2024.02-2ubuntu0.3 (dpkg)
guessed Create a notification for this product.
Credits
Dann Frazier
Show details on NVD website
To clipboard 

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