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CVE-2025-21358

Windows - Core Messaging

Microsoft CVSS 7.8 Updated March 10, 2026

Executive Risk Summary

"A vulnerability in Windows Core Messaging could allow an attacker to elevate privileges, potentially leading to unauthorized access and control of system resources. This vulnerability is considered critical and should be addressed promptly to prevent potential security breaches."

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 Privileges vulnerability in Windows Core Messaging requires immediate attention and patching to prevent potential security incidents.

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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.