HOWEVER:
As far as I know, Microsoft discontinued support of old IE versions that run on XP, and does not back-port newer supported versions to XP. Therefore AFAIK there won't be any patches for the IE flaw, for any version that runs on XP.
If somebody can show that Microsoft will produce a patch for a version of IE that runs supported on XP, let me know please.
If you're a Microsoft XP User, stop using Internet Explorer and switch to Google Chrome, FireFox, Safari or something other than IE.
As this is an EXPLOIT and not a Virus/Malware, the critical point is that the exploit is tied to IE.
For those of you with System Restore turned on make sure you have a System Restore point set, and a good backup of XP including the OS and your data files.
Stopping usage of IE will provide some protection for now but ultimately, XP is going to be breached world-wide and those of you running it will regret not upgrading.