Microsoft released 12 security bulletins for the last Patch Tuesday of 2015, eight of which are rated as critical for remote code execution vulnerabilities. Microsoft regards MS15-135 only as important, it would be wise to jump on this one as it is the fix for a zero-day vulnerability in the Windows kernel that attackers are exploiting to escalate privilege. Microsofts security team mentioned that it resolves flaws in Windows kernel-mode drivers. Microsoft Office, Microsoft Lync, Lync and Silverlight fixes several vulnerabilities that could allow information disclosure.”]