Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allow local users to cause a denial of service via a crafted .msc file, aka "Microsoft Management Console File Format Denial of Service Vulnerability."
http://www.securityfocus.com/bid/74486
http://www.securitytracker.com/id/1032286
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-054