CVE-2018-8437

mediumpriority · track · 26EPSS 0.021 · 81 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.05% (81st) EPSS

CVSS 5.5 · medium

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service Vulnerability." This affects Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8436, CVE-2018-8438.

cvss

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

6.2

010

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

v2.05.5mediumAV:A/AC:L/Au:S/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 5.1 · impact 6.9

v3.06.2mediumCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.7 · impact 4

v3.05.7mediumCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.14.7mediumAV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20USCWE-404US

affected products (6)

Products and version ranges known to be affected.

Microsoft Windows 10≤ Version 1803 for x64-based Systemsenisa_euvdEU
Microsoft Windows 10 Servers≤ version 1803 (Server Core Installation)enisa_euvdEU
Microsoft Corp Windows 10 1803all versionsfstec_bduRU
Microsoft Corp Windows Server 1803all versionsfstec_bduRU
microsoft windows 10= 1803nvdUScpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
microsoft windows server 2016= 1803nvdUScpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2018-09-13modified 2026-06-17

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+25188 more

references (9)

External citations — patches, advisories, analysis.

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