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CVE-2024-38141

Windows - Ancillary Function Driver for WinSock

Microsoft CVSS 7.8 Updated March 14, 2026

Executive Risk Summary

"A vulnerability in the Windows Ancillary Function Driver for WinSock could allow an attacker to elevate their privileges, potentially leading to a full system compromise. This vulnerability is considered an Elevation of Privilege vulnerability, which means an attacker would need to have existing access to the system to exploit it."

Operational Audit Arsenal

Target Type Driver
Target Asset afd.sys
Standard Path %windir%\System32\drivers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: afd.sys (Driver)
$Targets = 'afd.sys'
$SearchPaths = @("$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

Apply latest Windows security updates to mitigate Elevation of Privilege vulnerability in Ancillary Function Driver for WinSock

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Intelligence Sources

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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.