Stack-based buffer overflow in OSIsoft PI OPC DA Interface before 2.3.20.9 allows remote authenticated users to execute arbitrary code by sending packet data during the processing of messages associated with OPC items.
https://exchange.xforce.ibmcloud.com/vulnerabilities/77131
http://www.us-cert.gov/control_systems/pdf/ICSA-12-201-01.pdf
http://www.securityfocus.com/bid/54609