A denial of service vulnerability exists when Windows improperly handles File Transfer Protocol (FTP) connections, aka "Windows FTP Server Denial of Service Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8206