CVE-2024-21346 Win32k Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker can exploit a flaw in the Win32k component 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-2024-21346?

CVE-2024-21346 is a high-severity vulnerability in Microsoft Windows 11 21h2, published on 13 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Win32k Elevation of Privilege Vulnerability

Weakness: CWE-822

Which versions are affected by CVE-2024-21346?

It affects 4 products.

Products include Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows Server 2022 23h2.

How do I fix CVE-2024-21346?

No fix has been published for CVE-2024-21346 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-21346 being exploited?

There is no known exploitation of CVE-2024-21346 in the wild and no public exploit code.

All Microsoft Windows 11 21h2 vulnerabilities

Sources

Also known as GHSA-fx4r-wq66-f4g2.

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