All versions of Internet Explorer are vulnerable to remote code execution through a memory corruption bug. Attacks are currently being conducted with exploits that work on IE8 and IE9…. All versions of Internet Explorer are vulnerable to remote code execution through a memory corruption bug. Attacks are currently being conducted with exploits that work on IE8 and IE9.

Read more http://www.zdnet.com/microsoft-reports-ie-zero-day-attacks-7000020791/