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CVE-2025-26634

Windows - Core Messaging

Microsoft CVSS 7.5 Updated March 10, 2026

Executive Risk Summary

"A heap-based buffer overflow vulnerability in Windows Core Messaging allows an authorized attacker to elevate privileges over a network, potentially leading to unauthorized access and control. This vulnerability poses a significant risk to system security and integrity, as it can be exploited to gain elevated privileges and execute malicious code."

Operational Audit Arsenal

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

Messaging services may be affected

Internal Work Notes

CVE-2025-26634: Windows Core Messaging vulnerability allowing privilege escalation, requiring patching and reboot to mitigate

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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.