CVE-2018-8436

What it is

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.

At a glance

Exploitability

Can be exploited from the same network segment with an admin-level account. High risk of service disruption.

Exploit odds

2.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-09-13 00:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:04 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.1% in the next 30 days (EPSS).
• Severity: 6.2 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-09-13 00:29 UTC

Last modified

2026-06-17 02:04 UTC

Exploit probability

2.1% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Microsoft Windows 10 1803
• Microsoft Windows Server 2016 1803

Attack profile CVSS 3.0 · 6.2

Attack vector

Adjacent network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-8436.md and follow it. Check whether this project is affected by CVE-2018-8436. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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