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Vulnerabilities

Vulnerability · CVE-2026-53612

util-linux is a random collection of Linux utilities.

Published Jun 17, 2026 · catalog updated Oct 15, 2026 · util-linux is a random

Check if you run it

No confirmed exploitation is on record for CVE-2026-53612. EPSS is 0.11%. Act only if a listed version of util-linux is a random is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (util-linux is a random).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.11%
Remediation
Advisory link
Affected products
Alpine:v3.22 util-linux · Alpine:v3.23 util-linux · Alpine:v3.24 util-linux · Debian:13 util-linux · Debian:14 util-linux

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-privileged user authorized by an entry with or and an , , or option can use to race a writable ancestor of the target and redirect the privileged ownership or mode change to a root-owned path, potentially gaining root privileges. This issue is fixed in 2.41.5 and 2.42.2.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Alpine:v3.22 util-linux0 → 2.41.6-r0
  • Alpine:v3.23 util-linux0 → 2.41.6-r0
  • Alpine:v3.24 util-linux0 → 2.42.3-r0
  • Debian:13 util-linux0 → 2.41.5-0+deb13u1
  • Debian:14 util-linux0 → 2.42.2-1

How to fix CVE-2026-53612

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-53612. EPSS is 0.11%. Act only if a listed version of util-linux is a random is installed.

Which versions are affected?

Compare what you have installed with 0 → 2.41.6-r0, 0 → 2.42.3-r0, 0 → 2.41.5-0+deb13u1, 0 → 2.42.2-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition. EPSS 0.11%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 14, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    util-linux fixed in 2.41.5-0+deb13u1; util-linux fixed in 2.42.2-1

  2. Oct 14, 2026 · NIST NVD

    Detected

    util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-privileged user authorized by an entry with or and an , , or option can use to race a writable ancestor of the target and redirect the privileged ownership or mode c

  3. Oct 14, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    util-linux fixed in 2.41.5-0+deb13u1

  4. Oct 14, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    util-linux fixed in 2.42.2-1

  5. Oct 14, 2026 · NIST NVD

    Updated

    util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-privileged user authorized by an entry with or and an , , or option can use to race a writable ancestor of the target and redirect the privileged ownership or mode c

  6. Oct 14, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-privileged user authorized by an entry with or and an , , or option can use to race a writable ancestor of the target and redirect the privileged ownership or mode c

  7. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    util-linux fixed in 2.41.6-r0; util-linux fixed in 2.41.6-r0; util-linux fixed in 2.42.3-r0

  8. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    util-linux fixed in 2.41.6-r0

  9. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    util-linux fixed in 2.42.3-r0

  10. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-privileged user authorized by an entry with or and an , , or option can use to race a writable ancestor of the target and redirect the privileged ownership or mode c

Sources

  • CVE.orgVulnerability recordCVE-2026-53612

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-53612

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-53612

    util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-p

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryALPINE-CVE-2026-53612
    osv.dev
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-53612
    osv.dev
  • Trivy Vulnerability DBPackage advisoryALPINE-CVE-2026-53612

    util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID utility's post-mount hook performs path-based and operations on a previously validated mount target. A local low-privileged user authorized by an entry with o

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.