Home Microsoft CVE-2025-21420
Back to Microsoft

CVE-2025-21420

Windows - Disk Cleanup Tool

Microsoft CVSS 7.8 Updated March 10, 2026

Executive Risk Summary

"The Windows Disk Cleanup Tool Elevation of Privilege Vulnerability, identified as CVE-2025-21420, poses a risk to Windows systems by potentially allowing attackers to elevate their privileges. This vulnerability could be exploited to gain unauthorized access to sensitive data or system resources."

Operational Audit Arsenal

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

System Maintenance

Internal Work Notes

Apply latest Windows security updates to mitigate potential elevation of privilege vulnerability in Disk Cleanup Tool.

Technical Intelligence & Operational Utilities • Delivered Weekly

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.