CVE-2025-11568
MediumCVSS 4.4Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
A data corruption vulnerability in the luksmeta utility for LUKS1 allows overwriting encrypted data by writing excessive metadata. Lack of space validation leads to permanent loss of user data.
Risk Assessment
An attacker with proper permissions can permanently destroy data on LUKS1 encrypted devices, causing irreversible data loss and potential operational downtime for the organization.
Recommendation
Immediately update luksmeta to a version with the metadata space validation fix. Until updated, avoid using luksmeta with LUKS1 devices.
Other vulnerabilities in luksmeta
See all- CVE-2026-111555Medium
A flaw was found in luksmeta involving improper boundary validation of metadata slots. An attacker able to supply or modify a disk header can redirect wipe or load operations outside the intended metadata area, overwriting or zeroing out encrypted payload data and causing persistent data loss.
- CVE-2026-107565Medium
A flaw was found in luksmeta involving incorrect boundary calculations and flawed overlap detection. A local attacker with administrative privileges can write new metadata entries beyond available free space or over existing records, corrupting data on a LUKS device.
Original NVD description (English source)
A data corruption vulnerability has been identified in the luksmeta utility when used with the LUKS1 disk encryption format. An attacker with the necessary permissions can exploit this flaw by writing a large amount of metadata to an encrypted device. The utility fails to correctly validate the available space, causing the metadata to overwrite and corrupt the user's encrypted data. This action leads to a permanent loss of the stored information. Devices using the LUKS formats other than LUKS1 are not affected by this issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS