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CVE-2025-21325

Windows - Secure Kernel

Microsoft CVSS 7.8 Updated March 10, 2026

Executive Risk Summary

"A vulnerability in the Windows Secure Kernel Mode could allow an attacker to elevate privileges, potentially leading to unauthorized access to sensitive data and system resources. This vulnerability requires an attacker to have existing access to the system, but could be exploited to gain further control."

Operational Audit Arsenal

Target Type DLL
Target Asset ntdll.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: ntdll.dll (DLL)
$Targets = 'ntdll.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

System services may be affected

Internal Work Notes

Elevation of Privilege vulnerability in Windows Secure Kernel Mode, requiring patching to prevent potential unauthorized access

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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.