Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-34352

high Nessus Plugin ID 303993

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.

 - In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions. (CVE-2026-34352)

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-2026-34352

https://security-tracker.debian.org/tracker/CVE-2026-34352

Plugin Details

Severity: High

ID: 303993

File Name: unpatched_CVE_2026_34352.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/27/2026

Updated: 3/28/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

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-2026-34352

CVSS v3

Risk Factor: High

Base Score: 8.5

Temporal Score: 7.8

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:tigervnc-icons, p-cpe:/a:centos:centos:tigervnc-server-applet, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:tigervnc-server-applet, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:tigervnc-license, cpe:/o:redhat:enterprise_linux:9, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:tigervnc-license, p-cpe:/a:redhat:enterprise_linux:tigervnc-server, p-cpe:/a:redhat:enterprise_linux:tigervnc-selinux, p-cpe:/a:centos:centos:tigervnc-selinux, cpe:/o:redhat:enterprise_linux:8, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:tigervnc, p-cpe:/a:redhat:enterprise_linux:tigervnc-server-module, p-cpe:/a:redhat:enterprise_linux:tigervnc-icons, p-cpe:/a:centos:centos:tigervnc, p-cpe:/a:centos:centos:tigervnc-server, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:debian:debian_linux:tigervnc, p-cpe:/a:redhat:enterprise_linux:tigervnc-server-minimal, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:tigervnc-server-module, p-cpe:/a:centos:centos:tigervnc-server-minimal

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: 3/26/2026

Reference Information

CVE: CVE-2026-34352