Progea Movicon / PowerHMI 11.2.1085 and earlier allows remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an EIDP packet with a large size field, which writes a zero byte to an arbitrary memory location.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.