CVEs-PoC/2020/CVE-2020-5665.md

### [CVE-2020-5665](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5665)
![](https://img.shields.io/static/v1?label=Product&message=MELSEC%20iQ-F%20series%20FX5U(C)%20CPU%20unit&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-of-service%20(DoS)&color=brighgreen)

### Description

Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.

### POC

#### Reference
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf

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