The vulnerability of microprogrammed software in Siemens SIMATIC S7-1500 CPU Family programmable logic controllers stems from the lack of an immutable root cause in the equipment. This allows a hacker to replace the device’s load image and execute arbitrary code.

The vulnerability of the microprogrammed control systems of Siemens SIMATIC S7-1500 CPU Family lies in the absence of an immutable trust base in the equipment. Exploiting this vulnerability allows a perpetrator to replace the device’s boot image and execute arbitrary code...