Microsoft Windows 10 1607 and Windows Server 2016 allow remote attackers to cause a denial of service (application hang) via a crafted Office document, aka "Microsoft Hyper-V Network Switch Denial of Service Vulnerability." This vulnerability is different from those described in CVE-2017-0074, CVE-2017-0076, CVE-2017-0097, CVE-2017-0098, and CVE-2017-0099.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0051