CVE-2021-31968 Windows Remote Desktop Services Denial of Service Vulnerability

High 7.5 Published Updated

Attackers can cause a denial of service in Windows Remote Desktop Services, affecting system availability for users and administrators.

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-2021-31968?

CVE-2021-31968 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

Windows Remote Desktop Services Denial of Service Vulnerability

Which versions are affected by CVE-2021-31968?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2021-31968?

No fix has been published for CVE-2021-31968 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-2021-31968 being exploited?

There is no known exploitation of CVE-2021-31968 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-3rgv-vw7x-2j23.

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