SUSE SLES12 Security Update : freerdp (SUSE-SU-2026:1635-1)

medium Nessus Plugin ID 310647

Synopsis

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

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1635-1 advisory.

- CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted `WIRE_TO_SURFACE_2` PDU (bsc#1258919).
- CVE-2026-25942: Global-buffer-overflow in `xf_rail_server_execute_result` (bsc#1258920).
- CVE-2026-25952: Heap-use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
- CVE-2026-25953: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
- CVE-2026-25954: Heap-use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
- CVE-2026-25997: Heap-use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
- CVE-2026-26986: Heap-use-after-free in `rail_window_free` (bsc#1258967).
- CVE-2026-27015: Smartcard NDR alignment padding triggers reachable `WINPR_ASSERT` abort (bsc#1258987).
- CVE-2026-27951: Denial of service via endless blocking loop in `Stream_EnsureCapacity` (bsc#1258939).
- CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
- CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
- CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
- CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

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 freerdp-devel and / or winpr2-devel packages.

Plugin Details

Severity: Medium

ID: 310647

File Name: suse_SU-2026-1635-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/28/2026

Updated: 4/28/2026

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-2026-25997

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: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-26986

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:freerdp-devel, p-cpe:/a:novell:suse_linux:winpr2-devel

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: 4/27/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-25941, CVE-2026-25942, CVE-2026-25952, CVE-2026-25953, CVE-2026-25954, CVE-2026-25997, CVE-2026-26986, CVE-2026-27015, CVE-2026-27951, CVE-2026-29774, CVE-2026-29775, CVE-2026-29776, CVE-2026-31884, CVE-2026-31897

SuSE: SUSE-SU-2026:1635-1

Detections

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