An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain requests, aka "Windows SMB Information Disclosure Vulnerability." This affects Windows Server 2012, Windows 10, Windows 8.1, Windows RT 8.1, Windows Server 2012 R2.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8444