The vulnerability of microprogrammed software in Siemens Simatic S7-400 programmable logic controllers is related to errors in checking input data by Ethernet, PROFIBUS, and MPI interfaces. This allows a malicious actor to trigger a service failure.

The vulnerability of microprogrammed programmable logic controllers from Siemens Simatic S7-400 is related to errors in the validation of input data by Ethernet, PROFIBUS, and MPI interfaces. Exploiting this vulnerability can allow an attacker to cause malfunctions in the system by sending a...