CVE-2025-62221

Microsoft Windows Use After Free Vulnerability

Microsoft — Windows

Added to KEV catalog: 9 December 2025
Federal remediation due date: 30 December 2025
Weakness classification (CWE): CWE-416

CISA 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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