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Vulnerabilities

Vulnerability · CVE-2025-32438

make-initrd-ng is a tool for copying binaries and their dependencies.

Published Apr 15, 2025 · catalog updated Apr 15, 2025 · NixOS

Check if you run it

No confirmed exploitation is on record for CVE-2025-32438. EPSS is 0.19%. Act only if a listed version of NixOS is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Version ranges on file
Affected products
vendor NixOS nixpkgs < fbf76bf72b161b9f4ab97704a8258776d5f3ffba

make-initrd-ng is a tool for copying binaries and their dependencies. Local privilege escalation affecting all NixOS users. With systemd.shutdownRamfs.enable enabled (the default) a local user is able to create a program that will be executed by root during shutdown. Patches exist for NixOS 24.11 and 25.05 / unstable. As a workaround, set systemd.shutdownRamfs.enable = false;.

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.

  • vendor NixOS nixpkgs < fbf76bf72b161b9f4ab97704a8258776d5f3ffba< fbf76bf72b161b9f4ab97704a8258776d5f3ffba

How to fix CVE-2025-32438

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-2025-32438. EPSS is 0.19%. Act only if a listed version of NixOS is installed.

Which versions are affected?

Compare what you have installed with NixOS nixpkgs < fbf76bf72b161b9f4ab97704a8258776d5f3ffba < fbf76bf72b161b9f4ab97704a8258776d5f3ffba. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

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

Timeline

Detection, updates, and resolution for this record.

  1. Apr 15, 2025 · EUVD

    Detected

    make-initrd-ng is a tool for copying binaries and their dependencies. Local privilege escalation affecting all NixOS users. With systemd.shutdownRamfs.enable enabled (the default) a local user is able to create a program that will be executed by root during shutdown. Patches exist for NixOS 24.11 and 25.05 / unstable. As a workaround, set systemd.shutdownRamfs.enable = false;.

  2. Apr 15, 2025 · EUVD

    Updated

    make-initrd-ng is a tool for copying binaries and their dependencies. Local privilege escalation affecting all NixOS users. With systemd.shutdownRamfs.enable enabled (the default) a local user is able to create a program that will be executed by root during shutdown. Patches exist for NixOS 24.11 and 25.05 / unstable. As a workaround, set systemd.shutdownRamfs.enable = false;.

Sources

  • CVE.orgVulnerability recordCVE-2025-32438

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-32438

    30-day exploitation probability 0.2%

    first.org
  • EUVDVulnerability recordEUVD-2025-10983

    make-initrd-ng is a tool for copying binaries and their dependencies. Local privilege escalation affecting all NixOS users. With systemd.shutdownRamfs.enable enabled (the default) a local user is able to create a program that will be executed by root during shutdown. Patches exis

    euvd.enisa.europa.eu

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.