Mitsubishi Electric MELSEC iQ-F Predictable TCP Sequence Number Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Mitsubishi Electric MELSEC iQ-F. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of ACK packets. When generating ACK packets, the application uses a predictable sequence number. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current process.