Detections
Analytics
Unity Linux 20.1050e Security Update: freerdp (UTSA-2026-007177)
high Nessus Plugin ID 306826
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007177 advisory.FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to 2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP client's RDPGFX channel that allows a malicious RDP server to read uninitialized heap memory by sending a crafted WIRE_TO_SURFACE_2 PDU with a `bitmapDataLength` value larger than the actual data in the packet.
This can lead to information disclosure or client crashes when a user connects to a malicious server.
Versions 2.11.8 and 3.23.0 fix the issue.
Tenable has extracted the preceding description block directly from the Unity Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected freerdp package.See Also
http://www.nessus.org/u?2cfd045c
Plugin Details
Severity: High
ID: 306826
File Name: unity_linux_UTSA-2026-007177.nasl
Version: 1.2
Type: Local
Published: 4/16/2026
Updated: 4/17/2026
Supported Sensors: 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-2026-25941
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
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/17/2026
Vulnerability Publication Date: 2/25/2026
Reference Information
CVE: CVE-2026-25941