Summary:
- The article discusses a vulnerability (CVE-2025-21420) in the Windows Disk Cleanup tool that can be exploited to gain system-level privileges on a vulnerable system.
- A proof-of-concept (PoC) exploit has been released, demonstrating how the vulnerability can be leveraged to escalate privileges on a Windows system.
- The vulnerability is considered critical, as it allows an attacker to bypass security controls and potentially execute arbitrary code with elevated permissions, posing a significant security risk to Windows users.