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CVE-2025-27727

Windows - Installer

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"An elevation of privilege vulnerability exists in Windows Installer 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 system resources."

Operational Audit Arsenal

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

Installation services may be affected

Internal Work Notes

Elevation of Privilege vulnerability in Windows Installer requires 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.