Linux Distros Unpatched Vulnerability : CVE-2026-59677

medium Nessus Plugin ID 329589

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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 Missing Authorization vulnerability in selinux policycoreutils seunshares allows a user that is running in unconfined context to kill e.g. root-owned processes running also in unconfined context This issue affects policycoreutils through 3.10. (CVE-2026-59677)

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: 329589

File Name: unpatched_CVE_2026_59677.nasl

Version: 1.4

Type: Local

Agent: unix

Family: Misc.

Published: 7/25/2026

Updated: 9/2/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7.7

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

CVSS Score Source: CVE-2026-59677

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.4

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 4.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:policycoreutils, p-cpe:/a:canonical:ubuntu_linux:selinux, p-cpe:/a:centos:centos:policycoreutils-dbus, p-cpe:/a:centos:centos:policycoreutils-devel, p-cpe:/a:centos:centos:policycoreutils-gui, p-cpe:/a:centos:centos:policycoreutils-newrole, p-cpe:/a:centos:centos:policycoreutils-python-utils, p-cpe:/a:centos:centos:policycoreutils-python, p-cpe:/a:centos:centos:policycoreutils-restorecond, p-cpe:/a:centos:centos:policycoreutils-sandbox, p-cpe:/a:centos:centos:policycoreutils, p-cpe:/a:centos:centos:python3-policycoreutils, p-cpe:/a:debian:debian_linux:selinux-python, p-cpe:/a:redhat:enterprise_linux:policycoreutils-dbus, p-cpe:/a:redhat:enterprise_linux:policycoreutils-devel, p-cpe:/a:redhat:enterprise_linux:policycoreutils-gui, p-cpe:/a:redhat:enterprise_linux:policycoreutils-newrole, p-cpe:/a:redhat:enterprise_linux:policycoreutils-python-utils, p-cpe:/a:redhat:enterprise_linux:policycoreutils-python, p-cpe:/a:redhat:enterprise_linux:policycoreutils-restorecond, p-cpe:/a:redhat:enterprise_linux:policycoreutils-sandbox, p-cpe:/a:redhat:enterprise_linux:policycoreutils, p-cpe:/a:redhat:enterprise_linux:python3-policycoreutils

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: 7/23/2026

Reference Information

CVE: CVE-2026-59677

Detections

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