The PCo agent in SAP Plant Connectivity (PCo) allows remote attackers to cause a denial of service (memory corruption and agent crash) via crafted xMII requests, aka SAP Security Note 2238619.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.