Executive Risk Summary
"A heap-based buffer overflow vulnerability in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network, potentially leading to system compromise. This vulnerability poses a significant risk to Windows systems, as it can be exploited remotely without user interaction."
Operational Audit Arsenal
Target Type DLL
Target Asset lsasrv.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: lsasrv.dll (DLL)
$Targets = 'lsasrv.dll'
$SearchPaths = @("$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
Authentication services may be affected
Internal Work Notes
High-priority vulnerability in Windows SPNEGO Extended Negotiation requires immediate patching to prevent remote code execution attacks.
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
MSRC Advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47981
Official Advisoryhttps://www.vicarius.io/vsociety/posts/cve-2025-47981-detection-script-heap-based-buffer-overflow-in-windows-spnego-extended-negotiation
Official Advisoryhttps://www.vicarius.io/vsociety/posts/cve-2025-47981-mitigation-script-heap-based-buffer-overflow-in-windows-spnego-extended-negotiation
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.