What is CVE-2026-40224?

CVE-2026-40224 is a medium-severity vulnerability in Systemd, classified under Incorrect Authorization. CVSS score: 6.7/10. Published 2026-04-10.

How severe is CVE-2026-40224?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Is CVE-2026-40224 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Systemd

CVE-2026-40224

In systemd 259 before 260, there is local privilege escalation in systemd-machined because varlink can be used to reach the root namespace.

Vulnerability class: Broken Access Control

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

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.5th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.5% 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: 0.001 · change: +0.000

Affected products

Systemd — versions 259
Systemd Project

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

Public proof-of-concept exploits

0xparad0x/Exploit-CVE-2026-40224

References

github.com/systemd/systemd/security/advisories/GHSA-6pwp-j5vg-5j6m (Vendor Advisory)

Frequently asked questions

What is CVE-2026-40224?: CVE-2026-40224 is a medium-severity vulnerability in Systemd, classified under Incorrect Authorization. CVSS score: 6.7/10. Published 2026-04-10.
How severe is CVE-2026-40224?: Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2026-40224 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.