HIGH CISA KEV

CVE-2025-62221

CVSS v3

7.8

HIGH

EPSS Score

2.7%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CISA Known Exploited Vulnerability

Date Added
12/9/2025
Patch Due Date
12/30/2025
Ransomware Use
Unknown

Technical details

Published
12/9/2025

Frequently asked questions

What is CVE-2025-62221?

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Is CVE-2025-62221 actively exploited?

Yes. CVE-2025-62221 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 12/30/2025.

What is the CVSS score for CVE-2025-62221?

CVE-2025-62221 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2025-62221 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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