CVE-2022-28735

—

CVSS 3.1

7.8 high

EPSS

<1%p24

Published

Jul 20, 2023 (Jul 20, 2023)

Modified

Jun 17, 2026

Description

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.

Vendors: gnu
Products: grub2
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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