CVE-2026-4105

MEDIUM 6.7

Systemd: systemd: privilege escalation via improper access control in registermachine d-bus method

CVSS Score

6.7

EPSS Score

0.0%

EPSS Percentile

5th

A flaw was found in systemd. The systemd-machined service contains an Improper Access Control vulnerability due to insufficient validation of the class parameter in the RegisterMachine D-Bus (Desktop Bus) method. A local unprivileged user can exploit this by attempting to register a machine with a specific class value, which may leave behind a usable, attacker-controlled machine object. This allows the attacker to invoke methods on the privileged object, leading to the execution of arbitrary commands with root privileges on the host system.

CWE	CWE-284
Vendor	red hat
Product	red hat enterprise linux 10
Published	Mar 13, 2026
Last Updated	Apr 9, 2026

Stay Ahead of the Next One

Get instant alerts for red hat red hat enterprise linux 10

Be the first to know when new medium vulnerabilities affecting red hat red hat enterprise linux 10 are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Red Hat / Red Hat Enterprise Linux 10

All versions affected

Red Hat / Red Hat Enterprise Linux 10

All versions affected

Red Hat / Red Hat Enterprise Linux 10

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Hardened Images

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-4105 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2447262 github.com: https://github.com/systemd/systemd/security/advisories/GHSA-4h6x-r8vx-3862

Credits

Red Hat would like to thank Asim Viladi Oglu Manizada for reporting this issue.