CVE-2021-31974 Server for NFS Denial of Service Vulnerability

High 7.5 Published Updated

An attacker can cause a denial of service in the Windows Server for NFS component, affecting Windows and Server Core installations.

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

What is CVE-2021-31974?

CVE-2021-31974 is a high-severity denial of service vulnerability in Microsoft Windows 10, published on 8 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Server for NFS Denial of Service Vulnerability

Which versions are affected by CVE-2021-31974?

It affects 6 products.

Products include Microsoft Windows 10, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2021-31974?

No fix has been published for CVE-2021-31974 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-31974 being exploited?

There is no known exploitation of CVE-2021-31974 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-c48r-4qcv-pc5m.

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