cardosource/CVE-2026-25828

cardosource/CVE-2026-25828

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Command Injection in grub-btrfs initramfs hook - CVE-2026-25828
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CVE History

CVEPublishedCVSS v3CVSS v2
CVE-2026-25828↗
5.4 MEDIUM—

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."