CVE-2026-25828

Medium severity, CVSS 5.4. EPSS: 1.5% chance of exploitation in the next 30 days.

grub-btrfs through 2026-01-31 (on Arch Linux and derivative distributions) allows initramfs OS command injection because it does not sanitize the $root parameter to resolve_device(). NOTE: a third party reports "exploitation may not be feasible under normal conditions and may depend on specific implementation details within resolve_device."

Published 2026-02-12. Last modified 2026-06-17.