Microsoft has released 11 Security Patch this Tuesday, including one for a zero-day vulnerability that could allow a hacker to launch an attack using corrupted TIFF images to take over victims’ computers. All supported versions of Windows, from XP to RT and 8.1, are affected by at least one of the critical vulnerabilities. Users are recommended to upgrade to Windows 7/above or Linux Distributions, and make sure that you have installed the latest versions of Adobe Reader. Microsoft has also released an updated version (1.163.1657.0) of the Windows Malicious Software Removal Tool.
Source: https://thehackernews.com/2013/12/microsoft-released-security-patch-for.html