CVE-2017-0021

Hyper-V in Microsoft Windows 10 1607 and Windows Server 2016 does not properly validate vSMB packet data, which allows attackers to execute arbitrary code on a target OS, aka "Hyper-V System Data Structure Vulnerability." This vulnerability is different from that described in CVE-2017-0095.

• http://www.securityfocus.com/bid/96020Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037999
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0021Mitigation, Patch, Vendor Advisory
• http://www.securityfocus.com/bid/96020Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037999
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0021Mitigation, Patch, Vendor Advisory

Published

Mar 17, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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