The NCCIC has released an advisory on vulnerabilities in MatrikonOPC Explorer. Versions 5.0 and prior are affected.  If the attacker has local access to the system, an attacker could exploit this vulnerability. This could allow an attacker to transfer unauthorized files from the host system, which could result in unauthorized information disclosure. Matrikon has made fixes to this vulnerability in the version 5.1.0.0 update. The NCCIC also recommends a series of defensive measures to minimize the risk of exploitation of these vulnerabilities. NCCIC/ICS-CERT.