Multiple stack-based buffer overflows in service.exe in Measuresoft ScadaPro 4.0.0 and earlier allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long command to port 11234, as demonstrated with the TF command.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2011-3453
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-04.pdf
http://www.exploit-db.com/exploits/17848