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CVE-2024-38193

HighPublished

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Published: Aug 13, 2024
Updated: Oct 21, 2025
Assigning CNA: microsoft
Evidence observed: Aug 13, 2024

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

28.5%

Moderate · next 30 days

Percentile: 98.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Sources

CVE-2024-38193-NephsterPoC
Proof-of-concept exploit for CVE-2024-38193, a Windows 11 kernel privilege escalation vulnerability, tested on build 22631.3447.
Microsoft Windows 11 Pro 23H2 - Ancillary Function Driver for WinSock Privilege EscalationExploit
Milad karimi · windows · May 9, 2025

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