cve/2018/CVE-2018-7856.md

### [CVE-2018-7856](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7856)
![](https://img.shields.io/static/v1?label=Product&message=Modicon%20M580%20Modicon%20M340%20Modicon%20Quantum%20Modicon%20Premium&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Multiple%20Vulnerabilities&color=brighgreen)

### Description

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of Service when writing invalid memory blocks to the controller over Modbus.

### POC

#### Reference
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0767

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/amit-raut/QuickPcap