---
cve: "CVE-2026-67296"
severity: "HIGH"
cvss: 8.7
epss: "34%"
vendor: "FreeRDP"
kev: false
exploited: false
published: "2026-08-01 13:16:58"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-04T05:47:58+02:00"
---

# CVE-2026-67296

> 8.7 HIGH · 🧪 PoC

## Beschreibung

FreeRDP before 3.29.0 contains a denial of service vulnerability in the RDPEI server channel handler that fails to validate maximum PDU body length before stream allocation. A malicious RDP client can send a header-only RDPEI message with a large declared body length to force excessive memory allocation on the server.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 743f437f434c6814d3ba265c75cab14673bc2911 (Commit)

## Referenzen

- <https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jm8r-22j6-4m4v>
- <https://www.vulncheck.com/advisories/freerdp-before-denial-of-service-via-rdpei-pdu>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-67296) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_