Executive Risk Summary
"A race condition vulnerability exists in the Windows Ancillary Function Driver for WinSock, allowing an authorized attacker to elevate privileges locally. This vulnerability can be exploited to gain elevated access to the system, potentially leading to further malicious activity."
Anticipated Attack Path
- 1. Initial exploitation of the race condition vulnerability
- 2. Elevation of privileges to gain increased access to the system
- 3. Potential further malicious activity, such as data exfiltration or lateral movement
Am I Vulnerable?
- Verify the presence of the vulnerable Ancillary Function Driver for WinSock
- Check for any suspicious activity or logs indicating potential exploitation
- Apply the recommended patch from Microsoft to remediate the vulnerability
Operational Audit Arsenal
Target Type Windows Service
Target Asset WinSock
Standard Path C:\Windows\System32\drivers\
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: WinSock (Windows Service)
$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
Potential disruption to network services and applications utilizing WinSock
Internal Work Notes
CVE-2026-26173: Windows Ancillary Function Driver for WinSock vulnerability allowing local privilege elevation. Apply Microsoft patch and verify system stability.
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.