CVE-2026-32624
xrdp: Heap buffer overflow in xrdp_sec_process_logon_info() via incorrect g_strncat length calculation
Description
xrdp is an open source RDP server. Versions through 0.10.5 contain a heap-based buffer overflow vulnerability in its logon processing. In environments where domain_user_separator is configured in xrdp.ini, an unauthenticated remote attacker can send a crafted, excessively long username and domain name to overflow the internal buffer. This can corrupt adjacent memory regions, potentially leading to a Denial of Service (DoS) or unexpected behavior. The domain_name_separator directive is commented out by default, systems are not affected by this vulnerability unless it is intentionally configured. This issue has been fixed in version 0.10.6.
INFO
Published Date :
April 17, 2026, 8:16 p.m.
Last Modified :
Oct. 26, 2026, 10:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update xrdp to version 0.10.6 or newer.
- Verify the configuration of domain_name_separator.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-32624.
| URL | Resource |
|---|---|
| https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6 | Patch Release Notes |
| https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-7q2g-6fjr-h6pp | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-32624 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-32624
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-32624 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-32624 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: xrdp de neutrinolabs, Description: xrdp es un servidor RDP de código abierto. Las versiones hasta la 0.10.5 contienen una vulnerabilidad de desbordamiento de búfer basado en montículo en su procesamiento de inicio de sesión. En entornos donde domain_user_separator está configurado en xrdp.ini, un atacante remoto no autenticado puede enviar un nombre de usuario y un nombre de dominio manipulados y excesivamente largos para desbordar el búfer interno. Esto puede corromper regiones de memoria adyacentes, lo que podría llevar a una Denegación de Servicio (DoS) o a un comportamiento inesperado. La directiva domain_name_separator está comentada por defecto, los sistemas no se ven afectados por esta vulnerabilidad a menos que se configure intencionalmente. Este problema ha sido solucionado en la versión 0.10.6. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'neutrinolabs', 'product': 'xrdp', 'versions': [{'status': 'affected', 'version': '< 0.10.6'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-32624', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-04-20T16:22:06.067038Z'} -
Initial Analysis by [email protected]
Apr. 27, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Added CPE Configuration OR *cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* versions up to (excluding) 0.10.6 Added Reference Type GitHub, Inc.: https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6 Types: Patch, Release Notes Added Reference Type GitHub, Inc.: https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-7q2g-6fjr-h6pp Types: Vendor Advisory -
New CVE Received by [email protected]
Apr. 17, 2026
Action Type Old Value New Value Added Description xrdp is an open source RDP server. Versions through 0.10.5 contain a heap-based buffer overflow vulnerability in its logon processing. In environments where domain_user_separator is configured in xrdp.ini, an unauthenticated remote attacker can send a crafted, excessively long username and domain name to overflow the internal buffer. This can corrupt adjacent memory regions, potentially leading to a Denial of Service (DoS) or unexpected behavior. The domain_name_separator directive is commented out by default, systems are not affected by this vulnerability unless it is intentionally configured. This issue has been fixed in version 0.10.6. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-122 Added Reference https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6 Added Reference https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-7q2g-6fjr-h6pp