Heap-based buffer overflow in the PTC IsoView ActiveX control allows remote attackers to execute arbitrary code via a crafted ViewPort property value.
https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS181001
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-9092
http://www.zerodayinitiative.com/advisories/ZDI-14-399/