Security expert site eEye has put up this page (http://www.eeye.com/html/Research/Upcoming/index.html) showing vulnerabilities they have reported to Microsoft but have not yet been fixed.

These are all just as critical to the latest (http://www.techspot.com/vb/showthread.php?s=&threadid=10975) two (http://www.techspot.com/vb/showthread.php?s=&threadid=10745) updates that Microsoft released that also took them months to fix...

"Trustworthy Computing"