CVE-2019-1230 Information disclosure in Windows

Medium 6.8 Published Updated

An authenticated guest user can exploit improper input validation in the Windows Hyper-V Network Switch to disclose sensitive information from the host.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1230?

CVE-2019-1230 is a medium-severity vulnerability in Microsoft Windows 10, published on 10 Oct 2019. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An information disclosure vulnerability exists when the Windows Hyper-V Network Switch on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V Information Disclosure Vulnerability'.

Weakness: CWE-20

Which versions are affected by CVE-2019-1230?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2019-1230?

No fix has been published for CVE-2019-1230 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1230 being exploited?

There is no known exploitation of CVE-2019-1230 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-v3p4-hcqh-6pxm.

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