CVE-2024-21447 Windows Authentication Elevation of Privilege Vulnerability
An attacker can exploit a Windows authentication flaw to gain elevated privileges on affected Windows operating 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-2024-21447?
CVE-2024-21447 is a high-severity vulnerability in Microsoft Windows 10 21h2, published on 9 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Authentication Elevation of Privilege Vulnerability
Weakness: CWE-59
Which versions are affected by CVE-2024-21447?
It affects 7 products.
Products include Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows Server 2022 and 1 more.
How do I fix CVE-2024-21447?
No fix has been published for CVE-2024-21447 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-21447 being exploited?
There is no known exploitation of CVE-2024-21447 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 21h2
- CVE-2025-21333 Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow
- CVE-2025-21334 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2025-21335 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2026-42904 Windows TCP/IP Elevation of Privilege Vulnerability
- CVE-2026-105733 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-7m2v-r87h-vhc2.