http://www.pcworld.com/article/2864312/google-discloses-unpatched-windows-vulnerability.html
"Microsoft said in a statement it is working to release a security update to the reported vulnerability. “It is important to note that for a would-be attacker to potentially exploit a system, they would first need to have valid logon credentials and be able to log on locally to a targeted machine,” a spokesman said by email. “We encourage customers to keep their anti-virus software up to date, install all available security updates and enable the firewall on their computer.”