CVE-2021-33743 Windows Projected File System Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker can exploit a flaw in the Windows Projected File System to elevate 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-2021-33743?

CVE-2021-33743 is a high-severity vulnerability in Microsoft Windows 10, published on 14 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Windows Projected File System Elevation of Privilege Vulnerability

Which versions are affected by CVE-2021-33743?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2021-33743?

No fix has been published for CVE-2021-33743 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-33743 being exploited?

There is no known exploitation of CVE-2021-33743 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-hm2x-9mrv-7fj2.

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