CVE-2021-40469 Windows DNS Server Remote Code Execution Vulnerability

High 7.2 Published Updated

Remote attackers can execute arbitrary code on Windows DNS Server instances, requiring immediate patching by system administrators.

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-2021-40469?

CVE-2021-40469 is a high-severity code injection vulnerability in Microsoft Windows Server 2008, published on 13 Oct 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Windows DNS Server Remote Code Execution Vulnerability

Which versions are affected by CVE-2021-40469?

It affects 5 products.

Products include Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022.

How do I fix CVE-2021-40469?

No fix has been published for CVE-2021-40469 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2021-40469 being exploited?

There is no known exploitation of CVE-2021-40469 in the wild and no public exploit code.

All Microsoft Windows Server 2008 vulnerabilities

Sources

Also known as GHSA-g6f2-f38r-23wj.

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