Microsoft advisory for CVE-2026-4105
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-4105. This page also shows what EchelonGraph holds for CVE-2026-4105, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products5
- azl3 systemd-bootstrap 250.3-18 on Azure Linux 3.0
- cbl2 systemd 250.3-23 on CBL Mariner 2.0
- cbl2 systemd 250.3-24 on CBL Mariner 2.0
- cbl2 systemd-bootstrap 250.3-13 on CBL Mariner 2.0
- cbl2 systemd-bootstrap 250.3-14 on CBL Mariner 2.0
🧭 EchelonGraph on CVE-2026-4105
- EchelonGraph score
- 6.7 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
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.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2026-4105, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).