The Print Spooler service in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows man-in-the-middle attackers to execute arbitrary code by providing a crafted print driver during printer installation, aka "Windows Print Spooler Remote Code Execution Vulnerability."