---
cve: "CVE-2026-55645"
severity: "MEDIUM"
cvss: 6.5
epss: "28%"
vendor: "neutrinolabs"
kev: false
exploited: false
published: "2026-07-20 17:18:07"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T03:50:35+02:00"
---

# CVE-2026-55645

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of Client Control PDUs. During the RDP connection sequence, the parser does not perform sufficient length validation before reading specific data fields from the network stream. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted, truncated Client Control PDU. Due to missing bounds checks, the xrdp process may perform out-of-bounds memory reads, which can result in the termination of the service (Denial of Service). However, since xrdp forks a new process for each connection by default, an out-of-bounds read causing a process crash is unlikely to bring down the entire xrdp service.This issue has been fixed in version 0.10.6.1.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 80c52879fead585d6347df5b3c587718adf8f5a5 (Commit)

## Referenzen

- <https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-3m4m-h22g-c7xx>
- <https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-55645) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_