CVE-2026-33689

xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger this flaw by sending a specially crafted sequence of packets during the initial connection phase. This vulnerability results from insufficient validation of input buffer lengths before processing dynamic channel communication. Successful exploitation can lead to a denial-of-service (DoS) condition via a process crash or potential disclosure of sensitive information from the service's memory space. This issue has been fixed in version 0.10.6.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6	Patch Release Notes
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) xrdp es un servidor RDP de código abierto. Las versiones hasta la 0.10.5 tienen una vulnerabilidad de lectura fuera de límites en la lógica de análisis de mensajes RDP de pre-autenticación. Un atacante remoto no autenticado puede desencadenar esta falla enviando una secuencia de paquetes especialmente diseñada durante la fase de conexión inicial. Esta vulnerabilidad se debe a una validación insuficiente de las longitudes del búfer de entrada antes de procesar la comunicación del canal dinámico. La explotación exitosa puede conducir a una condición de denegación de servicio (DoS) mediante un fallo del proceso o la posible divulgación de información sensible del espacio de memoria del servicio. Este problema ha sido corregido en la versión 0.10.6.

Information

Published : 2026-04-17 21:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-33689

Mitre link : CVE-2026-33689

CVE.ORG link : CVE-2026-33689

JSON object : View

Products Affected

neutrinolabs

xrdp

CWE

CWE-125

Out-of-bounds Read

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