CVE-2021-31954 Windows Common Log File System Driver Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker can exploit a heap-based buffer overflow in the Windows CLFS driver to gain elevated privileges on the system.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-31954?

CVE-2021-31954 is a high-severity vulnerability in Microsoft Windows 10, published on 8 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Weakness: CWE-269, CWE-122

Which versions are affected by CVE-2021-31954?

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-2021-31954?

No fix has been published for CVE-2021-31954 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-31954 being exploited?

There is no known exploitation of CVE-2021-31954 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-w458-qg9w-x8vm.

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