CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability

Critical 9.9 Published Updated

Remote attackers can execute arbitrary code by sending specially crafted packets to the Windows TCP/IP stack.

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

What is CVE-2021-26424?

CVE-2021-26424 is a critical memory corruption vulnerability in Microsoft Windows 10, published on 12 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Windows TCP/IP Remote Code Execution Vulnerability

Which versions are affected by CVE-2021-26424?

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-2021-26424?

No fix has been published for CVE-2021-26424 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-26424 being exploited?

There is no known exploitation of CVE-2021-26424 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-f425-rchp-ffpg.

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