CVE-2017-0186

mediumpriority · track · 25EPSS 0.046 · 92 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

4.55% (92nd) EPSS

CVSS 6.3 · medium

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

A denial of service vulnerability exists when Microsoft Hyper-V Network Switch running on a Windows 10, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, or Windows Server 2016 host server fails to properly validate input from a privileged user on a guest operating system, aka "Hyper-V Denial of Service Vulnerability." This CVE ID is unique from CVE-2017-0178, CVE-2017-0179, CVE-2017-0182, CVE-2017-0183, CVE-2017-0184, and CVE-2017-0185.

cvss

Technical severity, 0–10. One row per scoring source.

6.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.3mediumAV:N/AC:M/Au:S/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 6.8 · impact 6.9

v3.05.8mediumCVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.3 · impact 4

v3.05.3mediumCVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (9)

Products and version ranges known to be affected.

Microsoft Corporation Hyper-V≤ Windows 10, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, and Windows Server 2016enisa_euvdEU
microsoft windows 10all versionsnvdUScpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
microsoft windows 10= 1511nvdUScpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
microsoft windows 10= 1607nvdUScpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
microsoft windows 10= 1703nvdUScpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
microsoft windows 8.1all versionsnvdUScpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:*
microsoft windows server 2012all versionsnvdUScpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
microsoft windows server 2012= r2nvdUScpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
microsoft windows server 2016all versionsnvdUScpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-04-12modified 2026-06-17

related (25,193)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-88771US	critical9.8OT critical	82.2% (100th)	KEV	2026-09-27
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS,…
CVE-2026-93952US	—OT critical	1.38% (72nd)	KEV	2026-09-22
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successf…
CVE-2026-12569US	critical9.8OT critical	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-34910US	—OT critical	90.0% (100th)	KEV	2026-05-22
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
CVE-2026-6973US	—OT critical	34.5% (98th)	KEV	2026-05-07
An Improper Input Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remotely authenticated user with administrative access to achieve remote code…

+25188 more

references (5)

External citations — patches, advisories, analysis.

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0186 cnnvd
http://www.securityfocus.com/bid/97438 enisa_euvd
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0186 enisa_euvd
http://www.securityfocus.com/bid/97438Third Party AdvisoryVDB Entrynvd
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0186MitigationPatchVendor Advisorynvd

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan