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SUSE SLED15 / SLES15 Security Update : freerdp2 (SUSE-SU-2026:1164-1)

critical Nessus Plugin ID 304637

Synopsis

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

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1164-1 advisory.

 - CVE-2026-26271: Buffer Overread in FreeRDP Icon Processing (bsc#1258979).
 - CVE-2026-26955: Out-of-bounds Write in freerdp (bsc#1258982).
 - CVE-2026-26965: Out-of-bounds Write in freerdp (bsc#1258985).
 - CVE-2026-31806: improper validation of server messages can lead to a heap buffer overflow and arbitrary code execution (bsc#1259653).
 - CVE-2026-31883: crafted RDPSND audio format and wave data can cause a heap buffer overflow write (bsc#1259679).
 - CVE-2026-31885: unchecked predictor can lead to an out-of-bounds read (bsc#1259686).

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.

See Also

https://bugzilla.suse.com/1258979

https://bugzilla.suse.com/1258982

https://bugzilla.suse.com/1258985

https://bugzilla.suse.com/1259653

https://bugzilla.suse.com/1259679

https://bugzilla.suse.com/1259686

https://lists.suse.com/pipermail/sle-updates/2026-April/045257.html

https://www.suse.com/security/cve/CVE-2026-26271

https://www.suse.com/security/cve/CVE-2026-26955

https://www.suse.com/security/cve/CVE-2026-26965

https://www.suse.com/security/cve/CVE-2026-31806

https://www.suse.com/security/cve/CVE-2026-31883

https://www.suse.com/security/cve/CVE-2026-31885

Plugin Details

Severity: Critical

ID: 304637

File Name: suse_SU-2026-1164-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/2/2026

Updated: 4/2/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-31883

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-31806

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:freerdp2-server, p-cpe:/a:novell:suse_linux:freerdp2-proxy, p-cpe:/a:novell:suse_linux:libfreerdp2-2, p-cpe:/a:novell:suse_linux:libwinpr2-2, p-cpe:/a:novell:suse_linux:winpr2-devel, p-cpe:/a:novell:suse_linux:freerdp2, p-cpe:/a:novell:suse_linux:freerdp2-devel, 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: 4/1/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-26271, CVE-2026-26955, CVE-2026-26965, CVE-2026-31806, CVE-2026-31883, CVE-2026-31885

IAVA: 2026-A-0257

SuSE: SUSE-SU-2026:1164-1