Discovered by Google’s Threat Analysis Group, the memory corruption flaw can be exploited by simply enticing an unsuspecting user to visit a website made to exploit it. Upon visiting the malicious site, the hacker gains the same user rights as the actual user of the affected PC.
They are then free to view, add or remove data, which will likely lead to the installation of malicious programs such as backdoors. This vulnerability affects Internet Explorer (IE) 11 for Windows 7 8, 8.1 and 10, as well as IE9 and IE10 on specific versions of Windows Server. As the fix is already out, you should be protected from this flaw if you allow Windows Update to freely apply them. (Source: Microsoft via CNET)