Schneider Electric Modicon M340 CPUs Resource Management Error Vulnerability

Schneider Electric Modicon M340 is a mid-range PLC (programmable logic controller) for industrial processes and infrastructure from Schneider Electric, France. The vulnerability can be exploited to send a large number of TCP RST or FIN packets to any open TCP port of the PLC, resulting in a denial of service on ports 80 (HTTP) and 502 (Modbus).