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CVE-2025-48821

Windows - Universal Plug and Play (UPnP) Device Host

Microsoft CVSS 7.1 Updated March 12, 2026

Executive Risk Summary

"A use-after-free vulnerability in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over an adjacent network. This vulnerability could potentially be exploited to gain elevated access to the system, compromising its security and integrity."

Operational Audit Arsenal

Target Type Service
Target Asset UPnP Device Host
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: UPnP Device Host (Service)
$Targets = 'UPnP Device Host'
$SearchPaths = @("$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

Network services may be affected

Internal Work Notes

CVE-2025-48821: UPnP Device Host vulnerability allowing privilege escalation, patching required to prevent potential security breaches.

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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.