Linux Distros Unpatched Vulnerability : CVE-2026-4105

medium Nessus Plugin ID 302156

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- 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. (CVE-2026-4105)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: Medium

ID: 302156

File Name: unpatched_CVE_2026_4105.nasl

Version: 1.7

Type: Local

Agent: unix

Family: Misc.

Published: 3/13/2026

Updated: 3/19/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.1

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-4105

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:systemd-sysv, p-cpe:/a:centos:centos:networkmanager-bluetooth, p-cpe:/a:canonical:ubuntu_linux:systemd, p-cpe:/a:centos:centos:systemd-networkd, p-cpe:/a:redhat:enterprise_linux:systemd, p-cpe:/a:redhat:enterprise_linux:networkmanager-ovs, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:libgudev1-devel, p-cpe:/a:centos:centos:networkmanager-libnm, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:systemd-python, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:centos:centos:networkmanager, p-cpe:/a:redhat:enterprise_linux:networkmanager, p-cpe:/a:centos:centos:networkmanager-tui, p-cpe:/a:centos:centos:systemd-ukify, p-cpe:/a:redhat:enterprise_linux:networkmanager-config-server, p-cpe:/a:redhat:enterprise_linux:networkmanager-dispatcher-routing-rules, p-cpe:/a:centos:centos:networkmanager-config-server, p-cpe:/a:centos:centos:systemd-resolved, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:systemd-oomd, p-cpe:/a:redhat:enterprise_linux:networkmanager-initscripts-updown, p-cpe:/a:centos:centos:libgudev1, p-cpe:/a:redhat:enterprise_linux:systemd-oomd, p-cpe:/a:redhat:enterprise_linux:networkmanager-wifi, p-cpe:/a:redhat:enterprise_linux:networkmanager-libnm-devel, p-cpe:/a:centos:centos:systemd, p-cpe:/a:redhat:enterprise_linux:systemd-container, p-cpe:/a:redhat:enterprise_linux:rpm-ostree, p-cpe:/a:centos:centos:networkmanager-adsl, p-cpe:/a:redhat:enterprise_linux:networkmanager-config-connectivity-redhat, p-cpe:/a:redhat:enterprise_linux:networkmanager-adsl, p-cpe:/a:centos:centos:systemd-python, p-cpe:/a:redhat:enterprise_linux:systemd-udev, p-cpe:/a:redhat:enterprise_linux:systemd-journal-remote, p-cpe:/a:centos:centos:systemd-container, p-cpe:/a:centos:centos:networkmanager-cloud-setup, p-cpe:/a:centos:centos:systemd-pam, p-cpe:/a:redhat:enterprise_linux:networkmanager-cloud-setup, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:networkmanager-team, p-cpe:/a:centos:centos:networkmanager-wifi, p-cpe:/a:redhat:enterprise_linux:systemd-journal-gateway, p-cpe:/a:centos:centos:rpm-ostree, p-cpe:/a:redhat:enterprise_linux:rpm-ostree-libs, p-cpe:/a:redhat:enterprise_linux:networkmanager-libnm, p-cpe:/a:centos:centos:networkmanager-libnm-devel, p-cpe:/a:redhat:enterprise_linux:libgudev1, p-cpe:/a:centos:centos:networkmanager-wwan, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:systemd-journal-remote, p-cpe:/a:redhat:enterprise_linux:networkmanager-team, p-cpe:/a:centos:centos:networkmanager-dispatcher-routing-rules, p-cpe:/a:redhat:enterprise_linux:systemd-libs, p-cpe:/a:centos:centos:networkmanager-config-connectivity-redhat, p-cpe:/a:centos:centos:systemd-libs, cpe:/o:redhat:enterprise_linux:8, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:systemd-tests, p-cpe:/a:redhat:enterprise_linux:networkmanager-bluetooth, p-cpe:/a:redhat:enterprise_linux:systemd-pam, p-cpe:/a:centos:centos:systemd-rpm-macros, p-cpe:/a:centos:centos:systemd-devel, p-cpe:/a:redhat:enterprise_linux:rhel-net-naming-sysattrs, p-cpe:/a:redhat:enterprise_linux:systemd-networkd, p-cpe:/a:redhat:enterprise_linux:networkmanager-ppp, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:rpm-ostree-libs, p-cpe:/a:centos:centos:rhel-net-naming-sysattrs, p-cpe:/a:redhat:enterprise_linux:systemd-boot-unsigned, p-cpe:/a:redhat:enterprise_linux:systemd-sysv, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:networkmanager-initscripts-updown, p-cpe:/a:centos:centos:networkmanager-ppp, p-cpe:/a:centos:centos:systemd-journal-gateway, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:systemd-resolved, p-cpe:/a:redhat:enterprise_linux:systemd-devel, p-cpe:/a:redhat:enterprise_linux:systemd-rpm-macros, p-cpe:/a:centos:centos:networkmanager-ovs, p-cpe:/a:centos:centos:systemd-boot-unsigned, p-cpe:/a:centos:centos:systemd-udev, p-cpe:/a:centos:centos:systemd-tests, p-cpe:/a:redhat:enterprise_linux:systemd-ukify, p-cpe:/a:redhat:enterprise_linux:networkmanager-wwan, p-cpe:/a:redhat:enterprise_linux:networkmanager-tui, p-cpe:/a:centos:centos:libgudev1-devel, p-cpe:/a:debian:debian_linux:systemd

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/13/2026

Reference Information

CVE: CVE-2026-4105

Detections

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