Microsoft has issued a security advisory warning users of Internet Explorer 6, 7, and 8 that they could be vulnerable to remote code execution hacks. The software giant will be shipping a software fix, available from its Fix It Solution Center, to protect systems before the patch is ready. Microsoft also has posted several mitigation options for users of IE 8 or earlier to protect the Windows operating system from the exploit. The best measure – of course, switch to Google Chrome and Mozilla Firefox. The vulnerability exists in the way that Internet Explorer accesses an object in memory that has been deleted or not allocated.
Source: https://thehackernews.com/2012/12/internet-explorer-6-7-and-8-vulnerable.html