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CVE-2025-48806

Windows 11 - Microsoft MPEG-2 Video Extension

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"A use-after-free vulnerability in the Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code locally, potentially leading to system compromise. This vulnerability requires an attacker to have local access to the system, but if successfully exploited, it could result in code execution with elevated privileges."

Operational Audit Arsenal

Target Type DLL
Target Asset msmpeg2vdec.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: msmpeg2vdec.dll (DLL)
$Targets = 'msmpeg2vdec.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

Media playback services may be affected

Internal Work Notes

CVE-2025-48806: Local code execution vulnerability in Microsoft MPEG-2 Video Extension, requiring patching to prevent potential system compromise.

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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.