---
cve: "CVE-2023-5222"
severity: "MEDIUM"
cvss: 6.3
epss: "80.4%"
vendor: "Viessmann"
kev: false
exploited: false
published: "2023-09-27 15:19:43"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-06T00:50:41+02:00"
---

# CVE-2023-5222

> 6.3 MEDIUM · 🧪 PoC

## Beschreibung

A vulnerability classified as critical was found in Viessmann Vitogate 300 up to 2.1.3.0. This vulnerability affects the function isValidUser of the file /cgi-bin/vitogate.cgi of the component Web Management Interface. The manipulation leads to use of hard-coded password. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-240364. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

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

## Exploit-Evidenz

- [EDB-51887 — Viessmann Vitogate 300 2.1.3.0 - Remote Code Execution (RCE)](https://www.exploit-db.com/exploits/51887)

## Referenzen

- <https://vuldb.com/?id.240364>
- <https://vuldb.com/?ctiid.240364>
- <https://github.com/Push3AX/vul/blob/main/viessmann/Vitogate300_HardcodedPassword.md>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-5222) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_