Vulnerability in Systemd

CVE-2026-40223

In systemd 258 before 260, a local unprivileged user can trigger an assert when a Delegate=yes and User=<unset> unit exists and is running.

EPSS: 0.000 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Systemd — versions 258

Weakness classification (CWE)

CWE-696

References

github.com/systemd/systemd/security/advisories/GHSA-x4h8-rrrg-q78f

Frequently asked questions

What is CVE-2026-40223?: CVE-2026-40223 is a medium-severity vulnerability in Systemd, classified under CWE-696. CVSS score: 4.7/10. Published 2026-04-10.
How severe is CVE-2026-40223?: Medium severity. CVSS v3 base score is 4.7 out of 10.