CVE-2020-26541: Linux Kernel

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: up to and including 5.8.13

Published 2020-10-02. Last modified 2026-06-17.