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CVE-2025-32709— Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1507
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Ancillary Function Driver for WinSock是美国微软（Microsoft）公司的Winsock的辅助功能驱动程序。 Microsoft Windows Ancillary Function Driver for WinSock存在资源管理错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for

CVSS 7.8 · High KEV EPSS 2.14% · P81

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-32709

Vulnerability Information
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Vulnerability Title
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Ancillary Function Driver for WinSock 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Ancillary Function Driver for WinSock是美国微软（Microsoft）公司的Winsock的辅助功能驱动程序。 Microsoft Windows Ancillary Function Driver for WinSock存在资源管理错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 Version 1507 10.0.10240.0 ~ 10.0.10240.21014 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.8066 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.7314 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.5854 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.5854 -
Microsoft Windows 11 version 22H2 10.0.22621.0 ~ 10.0.22621.5335 -
Microsoft Windows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.5335 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.5335 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.4061 -
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.27730 -
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.27730 -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.23317 -
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.23317 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.25475 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25475 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.22577 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.22577 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.8066 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.8066 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.7314 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.7314 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.3692 -
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.1611 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.4061 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.4061 -

II. Public POCs for CVE-2025-32709

# POC Description Source Link Shenlong Link
1 Real-world patching workflow for CVE-2025-32709. From hotfix install to SIEM alert validation—this repo documents every step with screenshots, commands, and detection logic. https://github.com/AdnanSiyat/How-to-Patch-CVE-2025-32709 POC Details
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III. Intelligence Information for CVE-2025-32709

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Same Patch Batch · Microsoft · 2025-05-13 · 71 CVEs total

CVE-2025-30387 9.8 CRITICAL Document Intelligence Studio On-Prem Elevation of Privilege Vulnerability
CVE-2025-29964 8.8 HIGH Windows Media Remote Code Execution Vulnerability
CVE-2025-29966 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2025-29967 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2025-29840 8.8 HIGH Windows Media Remote Code Execution Vulnerability
CVE-2025-29962 8.8 HIGH Windows Media Remote Code Execution Vulnerability
CVE-2025-29963 8.8 HIGH Windows Media Remote Code Execution Vulnerability
CVE-2025-30377 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2025-32704 8.4 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-30386 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2025-26646 8.0 HIGH .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability
CVE-2025-30393 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-32701 7.8 HIGH Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2025-30400 7.8 HIGH Microsoft DWM Core Library Elevation of Privilege Vulnerability
CVE-2025-30383 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-24063 7.8 HIGH Kernel Streaming Service Driver Elevation of Privilege Vulnerability
CVE-2025-32706 7.8 HIGH Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2025-30381 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-29975 7.8 HIGH Microsoft PC Manager Elevation of Privilege Vulnerability
CVE-2025-29977 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability

Showing top 20 of 71 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft
Same weakness: CWE-416

V. Comments for CVE-2025-32709

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