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CVE-2025-62217

Windows - Ancillary Function Driver for WinSock

Microsoft CVSS 7 Updated March 13, 2026

Executive Risk Summary

"A race condition vulnerability in the Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally, potentially leading to unauthorized access to sensitive data and system resources. This vulnerability can be exploited by an attacker with local access to the system, and successful exploitation could result in a significant security breach."

Operational Audit Arsenal

Target Type Driver
Target Asset WinSock
Standard Path %windir%\System32\drivers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: WinSock (Driver)
$Targets = 'WinSock'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Likely

Network services may be affected

Internal Work Notes

CVE-2025-62217: Local privilege escalation vulnerability in Windows Ancillary Function Driver for WinSock, requiring patching and potential system reboot to prevent exploitation.

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.