Microsoft Outlook 2003 allows for a security zone bypass when an embedded OLE object with a reference to a Windows media file in a Rich Text Format (RTF) message is received.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/33366/outlooksilent.txt
Source: https://packetstormsecurity.com/files/33366/outlooksilent.txt.html