#VU71002 Permissions, Privileges, and Access Controls in Windows Server and Windows - CVE-2023-21768
Published: January 10, 2023 / Updated: June 13, 2025
Vulnerability identifier: #VU71002
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear
CVE-ID: CVE-2023-21768
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Windows Server
Windows
Windows Server
Windows
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Ancillary Function Driver for WinSock, which leads to security restrictions bypass and privilege escalation.
Remediation
Install updates from vendor's website.