CVE-2025-62221—Microsoft Windows Use After Free Vulnerability

Vulnerability Name

Microsoft Windows Use After Free Vulnerability

Description

Microsoft Windows Cloud Files Mini Filter Driver contains a use after free vulnerability that can allow an authorized attacker to elevate privileges locally.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-62221
• https://nvd.nist.gov/vuln/detail/CVE-2025-62221

Related News Articles

• MiniPlasma Windows 0-Day Enables SYSTEM Privilege Escalation on Fully Patched SystemsMay 18, 2026

Related Weaknesses

• CWE-416