CVE-2023-21768

high

Description

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21768

https://www.bleepingcomputer.com/news/microsoft/windows-downdate-tool-lets-you-unpatch-windows-systems/

https://www.safebreach.com/blog/downgrade-attacks-using-windows-updates/

https://github.com/thexin7/kernel-cve-analysis

https://github.com/Feede33/Windows-11-Exploit

https://github.com/radoi-teodor/CVE-2023-21768-DSE-Bypass

https://github.com/IlanDudnik/CVE-2023-21768

https://github.com/gek64/cve

https://github.com/xboxoneresearch/CVE-2023-21768-dotnet

https://github.com/joxeankoret/diaphora

https://github.com/SamuelTulach/nullmap

https://github.com/cl4ym0re/cve-2023-21768-compiled

Details

Source: Mitre, NVD

Published: 2023-01-10

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.65417