CVE-2024-43630 Windows Kernel Elevation of Privilege Vulnerability
An attacker can exploit a stack-based buffer overflow in the Windows Kernel to gain elevated privileges.
- 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-2024-43630?
CVE-2024-43630 is a high-severity memory corruption vulnerability in Microsoft Windows 10 21h2, published on 12 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Kernel Elevation of Privilege Vulnerability
Weakness: CWE-121
Which versions are affected by CVE-2024-43630?
It affects 6 products.
Products include Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 24h2, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2, Microsoft Windows Server 2025.
How do I fix CVE-2024-43630?
No fix has been published for CVE-2024-43630 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-43630 being exploited?
There is no known exploitation of CVE-2024-43630 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
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-w799-83vp-q48c.