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CVE-2026-25828

20
FAUCET Score

CVE-2026-25828 describes an OS command injection vulnerability in grub-btrfs, specifically versions up to 2026-01-31, affecting Arch Linux and derivative distributions. This flaw stems from improper sanitization of the $root parameter within the resolve_device() function, potentially allowing an authenticated attacker to execute arbitrary commands. With a CVSS score of 5.4 (Medium), the attack requires low privileges and has a low impact on confidentiality and integrity, though exploitation feasibility under normal conditions is debated. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
N/AN/A
n/aCNA affected

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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 Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.21%
Probability of exploitation in next 30 days
EPSS Percentile
65.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0121 is in the 79th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archlinux.org / packages/extra/any/grub-btrfs
github.com / Antynea/grub-btrfs/tree/master
github.com / cardosource/CVE-2026-25828