CVE-2023-35337 Win32k Elevation of Privilege Vulnerability
An attacker can exploit a heap overflow in Win32k to gain elevated 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-2023-35337?
CVE-2023-35337 is a high-severity vulnerability in Microsoft Windows 10 21h2, published on 11 Jul 2023. 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-122
Which versions are affected by CVE-2023-35337?
It affects 5 products.
Products include Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows Server 2022.
How do I fix CVE-2023-35337?
No fix has been published for CVE-2023-35337 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-35337 being exploited?
There is no known exploitation of CVE-2023-35337 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-4mq4-fj43-vm4p.