Debian dla-4464 : xrdp - security update

critical Nessus Plugin ID 297582

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4464 advisory.

- ----------------------------------------------------------------------- Debian LTS Advisory DLA-4464-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta February 03, 2026 https://wiki.debian.org/LTS
- -----------------------------------------------------------------------

Package : xrdp Version : 0.9.21.1-1~deb11u3 CVE ID : CVE-2025-68670 Debian Bug : 1126537

xrdp is an open source RDP server. It was found that xrdp contains an unauthenticated stack-based buffer overflow vulnerability. The issue stems from improper bounds checking when processing user domain information during the connection sequence. If exploited, the vulnerability could allow remote attackers to execute arbitrary code on the target system.

For Debian 11 bullseye, this problem has been fixed in version 0.9.21.1-1~deb11u3.

We recommend that you upgrade your xrdp packages.

For the detailed security status of xrdp please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/xrdp

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the xrdp packages.

Plugin Details

Severity: Critical

ID: 297582

File Name: debian_DLA-4464.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/2/2026

Updated: 2/2/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2025-68670

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:xrdp

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/3/2026

Vulnerability Publication Date: 1/27/2026

Reference Information

CVE: CVE-2025-68670

Detections

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