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Linux Distros Unpatched Vulnerability : CVE-2026-29111

medium Nessus Plugin ID 303456

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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.

 - systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available. (CVE-2026-29111)

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

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-29111

Plugin Details

Severity: Medium

ID: 303456

File Name: unpatched_CVE_2026_29111.nasl

Version: 1.7

Type: Local

Agent: unix

Family: Misc.

Published: 3/24/2026

Updated: 5/16/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-29111

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:systemd-sysv, p-cpe:/a:redhat:enterprise_linux:rpm-ostree, p-cpe:/a:centos:centos:networkmanager-adsl, p-cpe:/a:centos:centos:rpm-ostree, p-cpe:/a:centos:centos:networkmanager-bluetooth, p-cpe:/a:centos:centos:systemd-sysv, p-cpe:/a:redhat:enterprise_linux:rpm-ostree-libs, p-cpe:/a:redhat:enterprise_linux:networkmanager-libnm, p-cpe:/a:redhat:enterprise_linux:networkmanager-libnm-devel, p-cpe:/a:centos:centos:networkmanager-libnm-devel, p-cpe:/a:redhat:enterprise_linux:libgudev1, p-cpe:/a:centos:centos:networkmanager-initscripts-updown, p-cpe:/a:centos:centos:networkmanager-wwan, 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:networkmanager-team, p-cpe:/a:centos:centos:systemd-journal-remote, p-cpe:/a:redhat:enterprise_linux:libgudev1-devel, p-cpe:/a:centos:centos:networkmanager-libnm, p-cpe:/a:centos:centos:networkmanager-ppp, p-cpe:/a:centos:centos:systemd-journal-gateway, p-cpe:/a:centos:centos:networkmanager-dispatcher-routing-rules, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:networkmanager-config-connectivity-redhat, p-cpe:/a:redhat:enterprise_linux:systemd-libs, p-cpe:/a:centos:centos: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:centos:centos:systemd-libs, p-cpe:/a:redhat:enterprise_linux:systemd-resolved, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:systemd-devel, p-cpe:/a:redhat:enterprise_linux:systemd-python, p-cpe:/a:redhat:enterprise_linux:systemd-tests, p-cpe:/a:redhat:enterprise_linux:networkmanager-bluetooth, p-cpe:/a:redhat:enterprise_linux:systemd-journal-remote, p-cpe:/a:centos:centos:networkmanager-ovs, p-cpe:/a:redhat:enterprise_linux:systemd-pam, p-cpe:/a:centos:centos:systemd-container, p-cpe:/a:centos:centos:networkmanager, p-cpe:/a:centos:centos:systemd-devel, p-cpe:/a:redhat:enterprise_linux:networkmanager, p-cpe:/a:redhat:enterprise_linux:systemd-container, p-cpe:/a:centos:centos:networkmanager-tui, p-cpe:/a:centos:centos:networkmanager-cloud-setup, p-cpe:/a:redhat:enterprise_linux:networkmanager-config-server, p-cpe:/a:centos:centos:systemd-udev, p-cpe:/a:centos:centos:systemd-tests, p-cpe:/a:redhat:enterprise_linux:networkmanager-dispatcher-routing-rules, p-cpe:/a:redhat:enterprise_linux:networkmanager-ppp, p-cpe:/a:redhat:enterprise_linux:systemd-networkd, p-cpe:/a:centos:centos:networkmanager-config-server, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:rpm-ostree-libs, p-cpe:/a:centos:centos:systemd-resolved, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:networkmanager-wwan, p-cpe:/a:redhat:enterprise_linux:networkmanager-initscripts-updown, p-cpe:/a:centos:centos:systemd-pam, p-cpe:/a:redhat:enterprise_linux:networkmanager-tui, p-cpe:/a:redhat:enterprise_linux:networkmanager-cloud-setup, p-cpe:/a:centos:centos:libgudev1-devel, p-cpe:/a:centos:centos:libgudev1, p-cpe:/a:redhat:enterprise_linux:networkmanager-wifi, 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:systemd

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/23/2026

Reference Information

CVE: CVE-2026-29111