OpenPLC Webserver 3 Denial Of Service / Buffer Overflow

A buffer overflow vulnerability in OpenPLC Runtime's webserver version 3 allows attackers to inject malicious code, leading to an internal server error that is irrecoverable. This also disables the ability to add any new slave devices through the "Add Slave Devices" component on the Modbus page of the application.

application attackers buffer buffer overflow buffer overflow vulnerability code denial of service devices error inject internal malicious overflow page runtime server service version vulnerability webserver