Windows Shell and WordPad in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7; Microsoft Office XP SP3; Office 2003 SP3; and Office System 2007 SP1 and SP2 do not properly validate COM objects during instantiation, which allows remote attackers to execute arbitrary code via a crafted file, aka "COM Validation Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7286
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-083
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-036
http://www.us-cert.gov/cas/techalerts/TA10-285A.html
http://www.us-cert.gov/cas/techalerts/TA10-159B.html