CVE-2026-4105 — Systemd: systemd: privilege escalation via improper access control in registermachine d-bus method
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 Register…
Published: 2026-03-13 · CVSS: 6.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7