CVE-2017-0021

CriticalCVSS 9.0/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.0 9.0/10CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
Mar 17, 2017
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2017-0021: Critical severity, CVSS 9.0 | Vulnix