What is CVE-2026-40225?

CVE-2026-40225 is a medium-severity vulnerability in Systemd, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 6.4/10. Published 2026-04-10.

How severe is CVE-2026-40225?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Vulnerability in Systemd

CVE-2026-40225

In udev in systemd before 260, local root execution can occur via malicious hardware devices and unsanitized kernel output.

Published 2026-04-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (10.4th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001

Affected products

Systemd — versions 0
Systemd Project

Weakness classification (CWE)

CWE-669 — Incorrect Resource Transfer Between Spheres

References

github.com/systemd/systemd/security/advisories/GHSA-vpfq-8p5f-jcqx (Vendor Advisory)

Frequently asked questions

What is CVE-2026-40225?: CVE-2026-40225 is a medium-severity vulnerability in Systemd, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 6.4/10. Published 2026-04-10.
How severe is CVE-2026-40225?: Medium severity. CVSS v3 base score is 6.4 out of 10.