HIGH 7.8 Microsoft PoC
CVE-2025-21420
Windows Disk Cleanup Tool Elevation of Privilege Vulnerability
Microsoft Security Update 2025-Feb: Windows Disk Cleanup Tool Elevation of Privilege Vulnerability
Affected Products
- Windows Server 2022 (Server Core installation)
- Windows Server 2022
- Windows Server 2019 (Server Core installation)
- Windows 10 Version 21H2 for x64-based Systems
- Windows 10 Version 21H2 for ARM64-based Systems
- Windows 11 Version 22H2 for ARM64-based Systems
- Windows 11 Version 22H2 for x64-based Systems
- Windows Server 2019
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21420
- https://nvd.nist.gov/vuln/detail/CVE-2025-21420
This high severity vulnerability with a CVSS score of 7.8 was published on 2025-02-11 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. Affected: Windows Server 2022 (Server Core installation), Windows Server 2022, Windows Server 2019 (Server Core installation) and 5 more.
vulnfeed aggregates 8893 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.