All vulnerabilities
CVE-2024-38193

Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability

Microsoft WindowsOperating systems
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 13 Aug 2024CISA KEV
Exploit odds (EPSS)28.7%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.26100.1457Also 10.0.17763.6189, 10.0.20348.2655 and 12 moreCVE List
Federal deadline3 Sep 2024Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

  • 10.0.26100.1457Windows 11 Version 24H2CVE List
  • 10.0.17763.6189Windows 10 Version 1809CVE List
  • 10.0.17763.6189Windows Server 2019CVE List
  • 10.0.17763.6189Windows Server 2019 (Server Core installation)CVE List
  • 10.0.20348.2655Windows Server 2022CVE List
  • 10.0.22000.3147Windows 11 version 21H2CVE List
Show all 25 fixed versions
  • 10.0.19044.4780Windows 10 Version 21H2CVE List
  • 10.0.22621.4037Windows 11 version 22H2CVE List
  • 10.0.19045.4780Windows 10 Version 22H2CVE List
  • 10.0.22631.4037Windows 11 version 22H3CVE List
  • 10.0.22631.4037Windows 11 Version 23H2CVE List
  • 10.0.25398.1085Windows Server 2022, 23H2 Edition (Server Core installation)CVE List
  • 10.0.10240.20751Windows 10 Version 1507CVE List
  • 10.0.14393.7259Windows 10 Version 1607CVE List
  • 10.0.14393.7259Windows Server 2016CVE List
  • 10.0.14393.7259Windows Server 2016 (Server Core installation)CVE List
  • 6.0.6003.22825Windows Server 2008 Service Pack 2CVE List
  • 6.0.6003.22825Windows Server 2008 Service Pack 2 (Server Core installation)CVE List
  • 6.0.6003.22825Windows Server 2008 Service Pack 2CVE List
  • 6.1.7601.27277Windows Server 2008 R2 Service Pack 1CVE List
  • 6.1.7601.27277Windows Server 2008 R2 Service Pack 1 (Server Core installation)CVE List
  • 6.2.9200.25031Windows Server 2012CVE List
  • 6.2.9200.25031Windows Server 2012 (Server Core installation)CVE List
  • 6.3.9600.22134Windows Server 2012 R2CVE List
  • 6.3.9600.22134Windows Server 2012 R2 (Server Core installation)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 13 Aug 2024Added to CISA KEVCISA KEV
  2. 13 Aug 2024, 17:29 UTCPublishedCVE List
  3. 9 May 2025Exploit code publicExploit-DB

Public exploit code and templates 1

  • Local exploitMicrosoft Windows 11 Pro 23H2 - Ancillary Function Driver for WinSock Privilege Escalation 9 May 2025Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Microsoft Windows Ancillary Function Driver for WinSock contains an unspecified vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.

Text from CVE List

Affected versions 25

  • Windows 11 Version 24H2affected: 10.0.26100.0 before 10.0.26100.1457CVE List
  • Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.6189CVE List
  • Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.6189CVE List
  • Windows Server 2019 (Server Core installation)affected: 10.0.17763.0 before 10.0.17763.6189CVE List
  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.2655CVE List
  • Windows 11 version 21H2affected: 10.0.0 before 10.0.22000.3147CVE List
  • Windows 10 Version 21H2affected: 10.0.19043.0 before 10.0.19044.4780CVE List
  • Windows 11 version 22H2affected: 10.0.22621.0 before 10.0.22621.4037CVE List
  • Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.4780CVE List
  • Windows 11 version 22H3affected: 10.0.22631.0 before 10.0.22631.4037CVE List
  • Windows 11 Version 23H2affected: 10.0.22631.0 before 10.0.22631.4037CVE List
  • Windows Server 2022, 23H2 Edition (Server Core installation)affected: 10.0.25398.0 before 10.0.25398.1085CVE List
  • Windows 10 Version 1507affected: 10.0.10240.0 before 10.0.10240.20751CVE List
  • Windows 10 Version 1607affected: 10.0.14393.0 before 10.0.14393.7259CVE List
  • Windows Server 2016affected: 10.0.14393.0 before 10.0.14393.7259CVE List
  • Windows Server 2016 (Server Core installation)affected: 10.0.14393.0 before 10.0.14393.7259CVE List
  • Windows Server 2008 Service Pack 2affected: 6.0.6003.0 before 6.0.6003.22825CVE List
  • Windows Server 2008 Service Pack 2 (Server Core installation)affected: 6.0.6003.0 before 6.0.6003.22825CVE List
  • Windows Server 2008 Service Pack 2affected: 6.0.6003.0 before 6.0.6003.22825CVE List
  • Windows Server 2008 R2 Service Pack 1affected: 6.1.7601.0 before 6.1.7601.27277CVE List
  • Windows Server 2008 R2 Service Pack 1 (Server Core installation)affected: 6.1.7601.0 before 6.1.7601.27277CVE List
  • Windows Server 2012affected: 6.2.9200.0 before 6.2.9200.25031CVE List
  • Windows Server 2012 (Server Core installation)affected: 6.2.9200.0 before 6.2.9200.25031CVE List
  • Windows Server 2012 R2affected: 6.3.9600.0 before 6.3.9600.22134CVE List
  • Windows Server 2012 R2 (Server Core installation)affected: 6.3.9600.0 before 6.3.9600.22134CVE List

References 4