Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-4105
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 · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (3.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2026:7299 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2026-4105 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- github.com/systemd/systemd/security/advisories/GHSA-4h6x-r8vx-3862
Frequently asked questions
- What is CVE-2026-4105?
- CVE-2026-4105 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Access Control. CVSS score: 6.7/10. Published 2026-03-13.
- How severe is CVE-2026-4105?
- Medium severity. CVSS v3 base score is 6.7 out of 10.