CVE-2022-28735 MEDIUM

CVE-2022-28735

Vendor Gnu Project
Product GNU GRUB
Published July 20, 2023
Last update February 13, 2025
View on NVD All CVEs

CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.

Key dates

02Disclosure timeline

July 20, 2023 CVE published
February 13, 2025 Record updated