{
  "cveId": "CVE-2025-62221",
  "url": "https://patchblox.com/security/cve/CVE-2025-62221",
  "summary": "CVE-2025-62221 is fixed in 21 products on 1 platform, first by KB5071544, released December 9, 2025. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on December 9, 2025. Patch Radar priority: Patch now.",
  "title": "Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EUse after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.\u003C/p\u003E",
  "published": "2025-12-09T14:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "cwe": "Use After Free",
  "epss": 0.02514,
  "epssPercentile": 0.84915,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": true,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Detected",
  "kev": {
    "added": "2025-12-09T00:00:00Z",
    "due": "2025-12-30T00:00:00Z",
    "ransomware": false,
    "requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable."
  },
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62221",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.8146",
      "fix": "KB5071544",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071544",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.8146",
      "fix": "KB5071544",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071544",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5071546",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071546",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5071546",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071546",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5071546",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071546",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5071546",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071546",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5071546",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071546",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5071546",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071546",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 23H2 for ARM64-based Systems",
      "fixedVersion": "22631.6345",
      "fix": "KB5071417",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071417",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 23H2 for x64-based Systems",
      "fixedVersion": "22631.6345",
      "fix": "KB5071417",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071417",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072033",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072033",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072014",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072014",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072033",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072033",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072014",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072014",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072033",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072033",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072014",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072014",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072033",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072033",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5072014",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072014",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.8146",
      "fix": "KB5071544",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071544",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.8146",
      "fix": "KB5071544",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071544",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022",
      "fixedVersion": "20348.4529",
      "fix": "KB5071547",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071547",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022",
      "fixedVersion": "20348.4467",
      "fix": "KB5071413",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071413",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022 (Server Core installation)",
      "fixedVersion": "20348.4529",
      "fix": "KB5071547",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071547",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022 (Server Core installation)",
      "fixedVersion": "20348.4467",
      "fix": "KB5071413",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071413",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
      "fixedVersion": "25398.2025",
      "fix": "KB5071542",
      "url": "https://patchblox.com/security/fix/microsoft/kb5071542",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "",
      "fix": "KB5072033",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072033",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "",
      "fix": "KB5072014",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072014",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5072033",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072033",
      "released": "2025-12-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5072014",
      "url": "https://patchblox.com/security/fix/microsoft/kb5072014",
      "released": "2025-12-09T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}