Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-11573

high Nessus Plugin ID 344021

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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.

 - Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash the app via stack exhaustion (DoS only). (CVE-2026-11573)

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-2026-11573

Plugin Details

Severity: High

ID: 344021

File Name: unpatched_CVE_2026_11573.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 9/9/2026

Updated: 9/9/2026

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: Low

Score: 3

Percentile: 23.61

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-11573

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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

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

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-common, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-devel, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-examples, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-gui, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-mysql, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-odbc, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-postgresql, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-private-devel, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-static, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase

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: 9/8/2026

Reference Information

CVE: CVE-2026-11573