CVE-2022-26937 Windows Network File System Remote Code Execution Vulnerability

Critical 9.8 Published Updated

Attackers can execute arbitrary code on Windows Server systems via the Network File System component.

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-2022-26937?

CVE-2022-26937 is a critical code injection vulnerability in Microsoft Windows Server, published on 10 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Windows Network File System Remote Code Execution Vulnerability

Which versions are affected by CVE-2022-26937?

It affects 6 products.

Products include Microsoft Windows Server, 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-2022-26937?

No fix has been published for CVE-2022-26937 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-2022-26937 being exploited?

There is no known exploitation of CVE-2022-26937 in the wild and no public exploit code.

Public exploit code: 3 proofs of concept on GitHub.

All Microsoft Windows Server vulnerabilities

Sources

Also known as GHSA-982c-jgv5-r7gp.

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