Melsec Iq-F Fx5U Cpu Firmware Security Vulnerabilities

CVE-2020-5665

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.