The kernel-mode drivers in Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow a local authenticated attacker to execute a specially crafted application to obtain information, or in Windows 7 and later, cause denial of service, aka "Win32k Information Disclosure Vulnerability."
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0077