The IE flaw can cause the browser to unexpectedly exit and execute arbitrary code. IE versions 6.0 on Windows 2000 with Service Pack 1, 3 and 4, as well as Windows XP with Service Pack 1 and 2, are vulnerable. Microsoft is currently working on making the workaround available through its automatic update service.
Microsoft releases IE workaround
Microsoft issues an updated security advisory for IE, enabling users to download a workaround for a security flaw.