Microsoft announced it will roll out eight security bulletins on Tuesday. All of the three critical security updates impact the new Windows 8.1, including the critical security update for all supported versions of Internet Explorer. There's also one update for Windows 8.1 rated as important.
The list also shows that the three critical bulletins also apply to Windows XP, along with two more "important" updates. These will be among the last official Windows XP bulletins released by Microsoft. The company has announced for some time that its support for the 12 year old OS will end on April 8th, and when that happens, Windows XP will be open to future "zero day" exploits that will never be fixed.