CVE-2025-62221

Timeline

Detection, updates, and resolution for this record.

1. Dec 9, 2025 · Catalog

   Detected

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

2. Dec 9, 2025 · CISA KEV

   Known exploited

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

3. Dec 30, 2025 · CISA KEV

   Remediation due

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

4. Sep 25, 2026 · Catalog

   Updated

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

Affected

• cpe microsoft/windows 10 1809version unspecified
• cpe microsoft/windows 10 21h2version unspecified
• cpe microsoft/windows 10 22h2version unspecified
• cpe microsoft/windows 11 23h2version unspecified
• cpe microsoft/windows 11 24h2version unspecified
• cpe microsoft/windows 11 25h2version unspecified
• cpe microsoft/windows server 2019version unspecified
• vendor Microsoft Windowsversion unspecified

Sources

• CISA KEVCVE-2025-62221

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

  cisa.gov
• CVE.orgCVE-2025-62221

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2025-62221

  30-day exploitation probability 2.5%

  first.org
• NIST NVDCVE-2025-62221

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

  nvd.nist.gov

References

• CISA note · msrc.microsoft.com
• Vendor Advisory · msrc.microsoft.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov