CVEs-PoC/2021/CVE-2021-31757.md

### [CVE-2021-31757](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31757)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setVLAN allows attackers to execute arbitrary code on the system via a crafted post request.

### POC

#### Reference
- https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_4

#### Github
- https://github.com/Yu3H0/IoT_CVE
- https://github.com/peanuts62/IOT_CVE