What is the CVSS score of CVE-2026-25828?

CVE-2026-25828 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 1.7%.

Which versions of Linux are affected by CVE-2026-25828?

CVE-2026-25828 presents moderate security risk, a OS command injection vulnerability rated CVSS 5.4. Exploitation could allow attackers to execute code or inject malicious input.

How to fix or mitigate CVE-2026-25828?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Linux CVE-2026-25828

MEDIUM

OS Command Injection (CWE-78)

2026-02-12 cve@mitre.org

Linux Command Injection

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 12, 2026 - 22:16 nvd

MEDIUM 5.4

DescriptionCVE.org

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."

AnalysisAI

Authenticated users can inject arbitrary OS commands into the initramfs boot process through unsanitized input parameters in grub-btrfs versions through January 2026 on Arch Linux and derivatives. The vulnerability requires valid credentials and may have limited exploitability depending on specific system configurations. No patch is currently available for this medium-severity command injection flaw.

Technical ContextAI

Classified as CWE-78 (OS Command Injection). Affects grub-btrf. 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."