Yesterday, Microsoft has released their monthly set of security bulletins designed to address security vulnerabilities within their products. For Patch Tuesday November 2015, Microsoft released 12 security bulletins, four rated as critical and the remaining 8 rated as important. Four bulletins are rated critical and address vulnerabilities in Edge, Internet Explorer, Windows Journal, and Windows. The remaining eight bulletins are rated important and address vulnerabilities in .NET, IPsec, Kerberos, Lync/Skype for Business, NDIS, Office, SChannel, and Winsock. https://technet.microsoft.com/en-us/library/security/ms15-nov.aspx