CVE Watch—

CVE-2025-62221

Microsoft Windows Use After Free Vulnerability

CVSS

—

No CVSS

EPSS

2.4%

p82

KEV

YES

Dec 9, 2025

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

2.3%EPSS · 30 days2.4%

2026-06-302026-07-17

KEV catalog record

Product

Microsoft / Windows

Vulnerability

Microsoft Windows Use After Free Vulnerability

Added to KEV

Dec 9, 2025

Remediate by

Dec 30, 2025

Known ransomware use

Summary description

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

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.

Notes

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

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