RHEL 10 : firewalld (RHSA-2026:67843)

medium Nessus Plugin ID 346286

Synopsis

The remote Red Hat host is missing a security update for firewalld.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:67843 advisory.

firewalld is a firewall service daemon that provides a dynamic customizable firewall with a D-Bus interface.

Security Fix(es):

* firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis- authorization (CVE-2026-4948)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL firewalld package based on the guidance in RHSA-2026:67843.

Plugin Details

Severity: Medium

ID: 346286

File Name: redhat-RHSA-2026-67843.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/16/2026

Updated: 9/16/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.68

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-4948

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux_eus:10.0, p-cpe:/a:redhat:enterprise_linux:firewall-applet, p-cpe:/a:redhat:enterprise_linux:firewall-config, p-cpe:/a:redhat:enterprise_linux:firewalld-filesystem, p-cpe:/a:redhat:enterprise_linux:firewalld, p-cpe:/a:redhat:enterprise_linux:python3-firewall

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 9/16/2026

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-4948

CWE: 279

RHSA: 2026:67843

Detections

Analytics