SUSE SLED15 / SLES15 / openSUSE 15 Security Update : LibVNCServer (SUSE-SU-2026:1173-1)

medium Nessus Plugin ID 304854

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1173-1 advisory.

- CVE-2026-32853: crafted FramebufferUpdate message can lead to information disclosure or denial of service (bsc#1260431).
- CVE-2026-32854: crafted HTTP requests can cause a denial of service (bsc#1260429).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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

Solution

Update the affected LibVNCServer-devel, libvncclient1 and / or libvncserver1 packages.

Plugin Details

Severity: Medium

ID: 304854

File Name: suse_SU-2026-1173-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/4/2026

Updated: 4/4/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-32853

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libvncserver1, p-cpe:/a:novell:suse_linux:libvncserver-devel, p-cpe:/a:novell:suse_linux:libvncclient1, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/2/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-32853, CVE-2026-32854

SuSE: SUSE-SU-2026:1173-1

Detections

Analytics