Buffer overflow in an unspecified third-party component in the Batch module for Schneider Electric CitectSCADA before 7.20 and Mitsubishi MX4 SCADA before 7.20 allows local users to execute arbitrary code via a long string in a login sequence.
http://www.us-cert.gov/control_systems/pdf/ICSA-11-279-02.pdf
http://www.securitytracker.com/id?1026306
http://www.citect.com/citectscada-batch