---
cve: "CVE-2026-51748"
severity: "MEDIUM"
cvss: 5.9
epss: "34%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-09-01 14:17:35"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T19:59:46+02:00"
---

# CVE-2026-51748

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

Incorrect access control in the sendStaticInfoToMaster function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to update stored slave inventory records via sending a crafted MQTT message to the cs_broker component.

## CVSS-Vektor

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

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

## Referenzen

- <https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html>
- <https://www.totolink.net/>
- <https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md>
- <https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-51748) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_