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CVE-2025-21304

Windows - DWM Core Library

Microsoft CVSS 7.8 Updated March 10, 2026

Executive Risk Summary

"The Microsoft DWM Core Library Elevation of Privilege Vulnerability, identified as CVE-2025-21304, poses a risk where an attacker could exploit this vulnerability to gain elevated privileges on a vulnerable system. Successful exploitation could allow an attacker to execute arbitrary code with elevated privileges, potentially leading to a full system compromise."

Operational Audit Arsenal

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

Desktop Window Manager service affected

Internal Work Notes

Apply latest security updates to mitigate potential elevation of privilege vulnerability in Microsoft DWM Core Library

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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.