This vulnerability could allow remote code execution if a print server received a specially crafted print job. and also Firewall best practices with standard default firewall configurations will also help you to protect network from attacks that originate outside the enterprise perimeter. Best practices recommend that systems connected directly to the Internet have a minimal number of ports exposed.
more info -http://go.microsoft.com/fwlink/?LinkId=273848
more info -http://go.microsoft.com/fwlink/?LinkId=273848