CVEs-PoC/2021/CVE-2021-21777.md

### [CVE-2021-21777](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21777)
![](https://img.shields.io/static/v1?label=Product&message=EIP%20Stack%20Group&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=out%20of%20bounds%20read&color=brighgreen)

### Description

An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234

#### Github
No PoCs found on GitHub currently.