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CVE-2025-48820

Windows - AppX Deployment Service

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"An elevation of privilege vulnerability exists in the Windows AppX Deployment Service due to improper link resolution before file access, allowing an authorized attacker to elevate privileges locally. This vulnerability can be exploited by an attacker to gain elevated access to sensitive data and systems."

Operational Audit Arsenal

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

Windows AppX Deployment Service

Internal Work Notes

Elevation of Privilege vulnerability in Windows AppX Deployment Service, requiring patching to prevent local privilege escalation attacks.

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Intelligence Sources

Related Microsoft Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.