CVE-2023-21768 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
An attacker can exploit a flaw in the Windows Ancillary Function Driver for WinSock 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-2023-21768?
CVE-2023-21768 is a high-severity vulnerability in Microsoft Windows 11, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Weakness: CWE-822
Which versions are affected by CVE-2023-21768?
It affects 2 products.
Products include Microsoft Windows 11, Microsoft Windows Server 2022.
How do I fix CVE-2023-21768?
No fix has been published for CVE-2023-21768 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-21768 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-21768 exists.
Public exploit code: 1 Metasploit module and 14 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 11
- CVE-2022-35804 SMB Client and Server Remote Code Execution Vulnerability
- CVE-2022-29133 Windows Kernel Elevation of Privilege Vulnerability
- CVE-2021-38672 Windows Hyper-V Remote Code Execution Vulnerability
- CVE-2022-44710 DirectX Graphics Kernel Elevation of Privilege Vulnerability
- CVE-2022-21996 Win32k Elevation of Privilege Vulnerability
Sources
Also known as GHSA-j69v-7pj3-vg67.