IE Cumulative Security Update for December 2009 is now available via Windows Update or Microsoft Update. This security update’s rated Critical for all supported releases of Internet Explorer: IE5.01, IE 6, IE6 SP1, IE7 (except when running on supported editions of Windows Server 2003 and Windows Server 2008), and Internet Explorer 8 (except when running on supported editions of Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2). For IE7 and IE8 running on Windows servers as listed, this update is rated Moderate. IE security updates are cumulative and contain all previously released updates for each version of Internet Explorer. For detailed information on the contents of this update, please see the following documentation: Security Bulletin MS09-072, and or KB976325.