11 of the updates affect various versions of Microsoft Windows, from Windows 2000 up through the current versions of Windows 7 and Windows Server 2008 R2. 5 of the vulnerabilities are rated Critical on at least one platform, and Windows 7 and Server 2008 R2 have 2 bulletins each rated Critical.

1 bulletin is rated Important for Microsoft Office XP and Office 2003, and another is rated Important for Office 2004 for Mac.

There will also be the usual updates to the Malicious Software Removal Kit, to the Windows Mail Junk Filter, and there will be several non-security updates.