SUSE SLES15: libX11-6 / libX11-6-32bit / libX11-data / libX11-devel / etc (SUSE-SU-2026:4500-1)

high Nessus Plugin ID 363064

Synopsis

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

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4500-1 advisory.

- CVE-2026-88806: XkbGetMap Reply Heap-based Buffer Overflow (bsc#1280910).
- CVE-2026-94283: out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser (bsc#1281653).
- CVE-2026-94284: out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser (bsc#1281657).
- CVE-2026-94285: out-of-bounds read in libX11's byte-oriented codeset parser (bsc#1281661).

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 packages.

Plugin Details

Severity: High

ID: 363064

File Name: suse_SU-2026-4500-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/6/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.37

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-88806

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libx11-6-32bit, p-cpe:/a:novell:suse_linux:libx11-6, p-cpe:/a:novell:suse_linux:libx11-data, p-cpe:/a:novell:suse_linux:libx11-devel, p-cpe:/a:novell:suse_linux:libx11-xcb1-32bit, p-cpe:/a:novell:suse_linux:libx11-xcb1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/5/2026

Vulnerability Publication Date: 9/21/2026

Reference Information

CVE: CVE-2026-88806, CVE-2026-94283, CVE-2026-94284, CVE-2026-94285

SuSE: SUSE-SU-2026:4500-1

Detections

Analytics