The Adobe Type Manager Library 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 remote attackers to cause a denial of service (system hang) via a crafted OpenType font, aka "OpenType Font Parsing Vulnerability."
https://www.exploit-db.com/exploits/39561/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-026