CVE-2020-26541

PoC —

CVSS 3.1

6.5 medium

EPSS

<1%p43

Published

Oct 2, 2020 (Oct 2, 2020)

Modified

Jun 17, 2026

Description

The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.

Vendors: linux
Products: linux kernel
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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