CVE-2021-43237 Windows Setup Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker can exploit a symlink vulnerability in Windows Setup to gain elevated privileges on affected Windows systems.

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-2021-43237?

CVE-2021-43237 is a high-severity vulnerability in Microsoft Windows 10, published on 15 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Windows Setup Elevation of Privilege Vulnerability

Weakness: CWE-59

Which versions are affected by CVE-2021-43237?

It affects 4 products.

Products include Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server, Microsoft Windows Server 2016.

How do I fix CVE-2021-43237?

No fix has been published for CVE-2021-43237 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-43237 being exploited?

There is no known exploitation of CVE-2021-43237 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-f87g-rqhg-rq8r.

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