CVE-2018-8438

At a glance

Severity: Not available
EPSS: EPSS 7.17 % · percentile 94 (2026-10-28)
State: PUBLISHED
Published: 2018-09-13
Updated: 2024-08-05
Assigner: microsoft
NVD status: Modified

Description

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 Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8436, CVE-2018-8437.

Scores

Version	Score	Vector	Scored by
CVSS 3.0	MEDIUM 6.8	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 6.8	AV:N/AC:L/Au:S/C:N/I:N/A:C	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-20

European references

ENISA EUVD · EUVD-2018-20074
GCVE · GCVE-0-2018-8438

CERT-FR advisories

CERTFR-2018-AVI-436 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:*
cpe:2.3:o:microsoft:windows_server:2012:r2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*

Affected products

Product	Versions
Microsoft · Windows Server 2012 R2	affected (Server Core installation)
Microsoft · Windows RT 8.1	affected Windows RT 8.1
Microsoft · Windows Server 2016	affected (Server Core installation)
Microsoft · Windows 8.1	affected 32-bit systems ; affected x64-based systems
Microsoft · Windows 10	affected 32-bit Systems ; affected Version 1607 for 32-bit Systems ; affected Version 1607 for x64-based Systems ; affected Version 1703 for 32-bit Systems ; affected Version 1703 for x64-based Systems ; affected Version 1709 for 32-bit Systems
Microsoft · Windows 10 Servers	affected version 1709 (Server Core Installation) ; affected version 1803 (Server Core Installation)

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD