CVE-2025-62221
HIGH CISA KEVCVSS v3
7.8
HIGH
EPSS Score
2.6%
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
- Required 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.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 12/9/2025
- Last Modified
- 12/10/2025
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), with vector string 3.1.
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.