A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted application, aka "Windows HelpPane Elevation of Privilege Vulnerability."
https://www.exploit-db.com/exploits/41607/
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0100
https://bugs.chromium.org/p/project-zero/issues/detail?id=1021
http://www.securitytracker.com/id/1038001
http://www.securityfocus.com/bid/96700
http://blog.inspired-sec.com/archive/2017/03/17/COM-Moniker-Privesc.html