CVE-2021-41357 Microsoft Win32k Privilege Escalation
An attacker can exploit a flaw in the Win32k component to elevate privileges on affected Windows operating systems.
- Exploited in the wild
- Since 25 Apr 2022
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-41357?
CVE-2021-41357 is a high-severity vulnerability in Microsoft Windows 10 20h2, published on 13 Oct 2021. 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
Which versions are affected by CVE-2021-41357?
It affects 7 products.
Products include Microsoft Windows 10 2004, Microsoft Windows 10 20h2, Microsoft Windows 10 21h1, Microsoft Windows 11 21h2, Microsoft Windows Server 2004, Microsoft Windows Server 2022 and 1 more.
How do I fix CVE-2021-41357?
No fix has been published for CVE-2021-41357 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 16 May 2022.
Is CVE-2021-41357 being exploited?
Yes. Attackers have exploited CVE-2021-41357 in the wild since at least 25 Apr 2022.
Other vulnerabilities in Microsoft Windows 10 20h2
Sources
Also known as GHSA-pph6-grp2-wvvw.