---
cve: "CVE-2026-41252"
severity: "CRITICAL"
cvss: 9.8
epss: "61%"
vendor: "neutrinolabs"
kev: false
exploited: false
published: "2026-07-20 17:17:08"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T07:09:34+02:00"
---

# CVE-2026-41252

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices are not properly validated. A malicious VNC server can exploit this flaw by sending crafted messages with out-of-range values, leading to an out-of-bounds write on the heap. This memory corruption can result in a denial of service (DoS) or potentially allow remote code execution (RCE) prior to authentication. 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:H/I:H/A:H
```

| 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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 80c52879fead585d6347df5b3c587718adf8f5a5 (Commit)

## Referenzen

- <https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-w5vg-6qmv-j63j>
- <https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-41252) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_