Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components SP3, Office XP Web Components SP3, BizTalk Server 2002, and Visual Studio .NET 2003 SP1 allows remote attackers to execute arbitrary code via crafted property values, aka "Office Web Components Buffer Overflow Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6326
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-043
http://www.us-cert.gov/cas/techalerts/TA09-223A.html
http://www.securitytracker.com/id?1022708