Vulnerability in GNU Guix

CVE-2025-59378

In guix-daemon in GNU Guix before 1618ca7, a content-addressed-mirrors file can be written to create a setuid program that allows a regular user to gain the privileges of the build user that runs it (even after the build has ended).

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-59378: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-59378?
CVE-2025-59378 is a medium-severity vulnerability in GNU Guix, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 5.7/10. Published 2025-09-15.
How severe is CVE-2025-59378?
Medium severity. CVSS v3 base score is 5.7 out of 10.