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Vulnerability record · CVE-2017-8623 · published 8 August 2017

CVE-2017-8623: Microsoft windows 10 improper input validation vulnerability

Microsoft · Windows 10

Windows Hyper-V in Windows 10 1607, 1703, and Windows Server 2016 allows a denial of service vulnerability when it fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service Vulnerability".

6.8 CVSS 3.0 Medium EPSS 6.5% · top 6.5% CWE-20 · Improper input validation
6.8CVSS 3.0 base score, v2 6.8
6.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Windows Hyper-V in Windows 10 1607, 1703, and Windows Server 2016 allows a denial of service vulnerability when it fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service Vulnerability".

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/100042 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039104 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8623 PatchVendor Advisory
http://www.securityfocus.com/bid/100042 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039104 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8623 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-8623), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.