Critical Update for Internet Explorer

This security update is rated Critical for all supported releases of Internet Explorer: Internet Explorer 5.01, Internet Explorer 6, Internet Explorer 6 Service Pack 1, Internet Explorer 7, and Internet Explorer 8 (except Internet Explorer 6 for supported editions of Windows Server 2003). For Internet Explorer 6 for supported editions of Windows Server 2003 as listed, this update is rated Moderate.

http://www.microsoft.com/technet/security/bulletin/MS10-002.mspx

Installations of Server Core (Windows Server 2008 and Windows Server 2008 R2) are not affected by this vulnerability.

Microsoft Security Bulletin MS10-002 – Critical
Cumulative Security Update for Internet Explorer (978207)