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VULNERABILITIES

CVE-2026-4105 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.7 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:7299 [email protected]
https://access.redhat.com/security/cve/CVE-2026-4105 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2447262 [email protected]
https://github.com/systemd/systemd/security/advisories/GHSA-4h6x-r8vx-3862 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-284Improper Access Control[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-4105
NVD Published Date:
Mar 13, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-4105 Details - Not Deferred