---
cve: "CVE-2023-6906"
severity: "CRITICAL"
cvss: 9.8
epss: "1.8%"
vendor: "Totolink"
kev: false
exploited: false
published: "2023-12-18 04:15:51"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-02T14:02:08+02:00"
---

# CVE-2023-6906

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

A vulnerability, which was classified as critical, was found in Totolink A7100RU 7.4cu.2313_B20191024. Affected is the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument flag with the input ie8 leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-248268. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

## 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 |

## Referenzen

- <https://vuldb.com/?id.248268>
- <https://vuldb.com/?ctiid.248268>
- <https://github.com/unpWn4bL3/iot-security/blob/main/1.md>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-6906) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_