cve/2021/CVE-2021-21778.md

### [CVE-2021-21778](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21778)
![](https://img.shields.io/static/v1?label=Product&message=MZ%20Automation%22&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=denial%20of%20service&color=brighgreen)

### Description

A denial of service vulnerability exists in the ASDU message processing functionality of MZ Automation GmbH lib60870.NET 2.2.0. A specially crafted network request can lead to loss of communications. An attacker can send an unauthenticated message to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236

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