Microsoft Windows is prone to a remote code-execution vulnerability that affects the Print Spooler Service. An attacker can exploit this issue to execute arbitrary code with SYSTEM-level privileges.
Block external access at the network boundary, unless external parties require service.
If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of exploitation.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include explained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
Do not use client software to access unknown or untrusted hosts from critical systems.
To reduce the likelihood of exploits, connect to only trusted hosts and servers.
Updates are available. Please see the references for more information.