Microsoft Office OWC10.Spreadsheet ActiveX msDataSourceObject() Heap Corruption Vulnerability

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Microsoft Office. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists during the processing of malicious parameters to the routine msDataSourceObject() and results in transfer of control to unallocated memory. This issue can be exploited to execute arbitrary code under the context of the currently logged in user.