TI-2018-06118 Aliases CVE-2018-8436 GHSA-r8cq-hqqc-2p5f

Improper input validation in Microsoft Windows 10

LOW 32CWE-20Published 2018-09-13 · Updated 2024-08-05

Key facts

Attack vector: Adjacent network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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-2018-8437, CVE-2018-8438.

Why it matters now

EPSS 0.02052 81st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Windows 10	Version 1803 for x64-based Systems	—	No fix listed	CNA
Microsoft	Windows 10 Servers	version 1803 (Server Core Installation)	—	No fix listed	CNA

Windows 10 VendorMicrosoft Affected Version 1803 for x64-based Systems Fixed in — No fix listed CNA
Windows 10 Servers VendorMicrosoft Affected version 1803 (Server Core Installation) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:microsoft:windows_10:1803::::::x64:	1803	Vulnerable	Microsoft
cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*	1803	Vulnerable	Microsoft

cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:* Versions 1803 Vulnerable ·Microsoft
cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* Versions 1803 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-8436
2026-10-03 Alias added: GHSA-r8cq-hqqc-2p5f

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8436

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences