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.

INFO

Published Date :

2025-11-26T17:33:17.506Z

Last Modified :

2025-11-26T18:25:29.426Z

Source :

canonical
AFFECTED PRODUCTS

The following products are affected by CVE-2025-2486 vulnerability.

Vendors Products
Canonical
  • Ubuntu
Tianocore
  • Edk2
Ubuntu
  • Edk2
  • Ubuntu
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-2486.

URL Resource
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2101797 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-2486 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-2486 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact