CVE-2025-21420

Windows Disk Cleanup Tool Elevation of Privilege Vulnerability...

CVE-2025-21420

Windows Disk Cleanup Tool Elevation of Privilege Vulnerability...

CVE-2025-21420

CVE-2025-21420 is evidenced by PoCs showing a Disk Cleanup Tool (cleanmgr.exe) elevation via a DLL sideload approach. The GitHub PoCs demonstrate loading dokan1.dll/dokannp1.dll to trigger arbitrary code paths, with the exploit chain listing SetProcessMitigationPolicy (ProcessRedirectionTrustPoli...

Windows Disk Cleanup Tool Elevation of Privilege Vulnerability

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PT-2025-6338

Name of the Vulnerable Software and Affected Versions Windows Disk Cleanup Tool affected versions not specified Description A critical issue exists within the Windows Disk Cleanup Tool cleanmgr.exe that allows for privilege escalation to SYSTEM privileges. The flaw involves errors in handling...

Velociraptor 0.7.2 Release: Digging Deeper than Ever with EWF Support, Dynamic DNS and More

By Dr. Mike Cohen and Carlos Canto Rapid7 is very excited to announce that version 0.7.2 of Velociraptor is now fully available for download. In this post we’ll discuss some of the interesting new features. EWF Support Velociraptor has introduced the ability to analyze dead disk images in the pas...

How to specify the drive letter for the MCSIO Write Cache disk

Setting a specific Windows Drive letter to the disk created by the MCS Write Cache mechanism MCS IO / MCSWCDisk...

Unable to Back Up Disk X: Due to Invalid Partition Table

Challenge The backup job fails with the following error: Unable to back up disk X: due to invalid partition table Cause The error is caused by a volume type with no partition table and is not supported by Veeam Agent for Microsoft Windows. In Windows Disk Management, the volume looks like a commo...

Microsoft Keeps Backup of Your Encryption Key on its Server — Here's How to Delete it

Have you recently purchased a Windows computer? Congratulations! As your new Windows computer has inbuilt disk encryption feature that is turned on by default in order to protect your data in case your device is lost or stolen. Moreover, In case you lost your encryption keys then don't worry,...