Skip to content
Fencer Vulns
medium 6.7

CVE-2026-40224 json

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

published 2026-04-10 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-21396

cvss
6.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

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

Patch / fix

  • systemd systemd 260
  • systemd Debian 14 260~rc2-1

debian advisories DEBIAN-CVE-2026-40224

  • systemd hummingbird 1 260.1-2.1.hum1
  • systemd-pam hummingbird 1 260.1-2.1.hum1
  • systemd-libs hummingbird 1 260.1-2.1.hum1
  • systemd-udev hummingbird 1 260.1-2.1.hum1
  • systemd-tests hummingbird 1 260.1-2.1.hum1
  • systemd-ukify hummingbird 1 260.1-2.1.hum1
  • systemd-shared hummingbird 1 260.1-2.1.hum1
  • systemd-networkd hummingbird 1 260.1-2.1.hum1

red hat advisories RHSA-2026:7299

  • systemd openSUSE Tumbleweed 260.1-2.1

opensuse advisories openSUSE-SU-2026:10840-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-40224 updated cvss 6.7

systemd: systemd-machined: Local privilege escalation via varlink

  • Red Hat Hardened Images systemd 260.1-2.1.hum1, systemd-pam 260.1-2.1.hum1, systemd-libs 260.1-2.1.hum1, systemd-udev 260.1-2.1.hum1, systemd-tests 260.1-2.1.hum1, systemd-ukify 260.1-2.1.hum1, +14 more
    fixed: vendor fix RHSA-2026:7299
  • Red Hat Enterprise Linux 7 systemd, libgudev1, systemd-libs, systemd-sysv, systemd-python, systemd-networkd, +2 more Red Hat Enterprise Linux 8 systemd, systemd-pam, systemd-libs, systemd-udev, systemd-tests, NetworkManager, +16 more Red Hat Enterprise Linux 9 systemd, systemd-pam, systemd-libs, systemd-oomd, systemd-udev, systemd-ukify, +21 more Red Hat Enterprise Linux 10 systemd, rpm-ostree, NetworkManager Red Hat OpenShift Container Platform 4 systemd, systemd-pam, systemd-libs, systemd-oomd, systemd-udev, systemd-tests, +24 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
6 mo ago

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

  • systemd systemd

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.