{
  "cveId": "CVE-2025-47827",
  "url": "https://patchblox.com/security/cve/CVE-2025-47827",
  "summary": "CVE-2025-47827 is fixed in 33 products on 1 platform, first by KB5066836, released October 14, 2025. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on October 14, 2025. Patch Radar priority: Patch now.",
  "title": "MITRE CVE-2025-47827: Secure Boot bypass in IGEL OS before 11",
  "description": "\u003Cp\u003EIn IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image.\u003C/p\u003E\n\u003Cp\u003EMITRE created this CVE on their behalf. The documented Windows updates incorporate updates in IGEL OS which address this vulnerability. Please see \u003Ca href=\u0022https://msrc-blog.microsoft.com/2021/01/13/security-update-guide-supports-cves-assigned-by-industry-partners/\u0022\u003ESecurity Update Guide Supports CVEs Assigned by Industry Partners\u003C/a\u003E for more information.\u003C/p\u003E",
  "published": "2025-10-14T12:00:00Z",
  "severity": "Important",
  "cvss": 4.6,
  "cwe": "Use of a Key Past its Expiration Date",
  "epss": 0.05153,
  "epssPercentile": 0.92481,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": true,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Detected",
  "kev": {
    "added": "2025-10-14T00:00:00Z",
    "due": "2025-11-04T00:00:00Z",
    "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-2025-47827",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.8519",
      "fix": "KB5066836",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066836",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.8519",
      "fix": "KB5066836",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066836",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.7919",
      "fix": "KB5066586",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066586",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.7919",
      "fix": "KB5066586",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066586",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.21161",
      "fix": "KB5066837",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066837",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.21161",
      "fix": "KB5066837",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066837",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 23H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 23H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5066875",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066875",
      "released": "2025-10-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5066875",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066875",
      "released": "2025-10-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5066873",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066873",
      "released": "2025-10-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5066873",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066873",
      "released": "2025-10-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.8519",
      "fix": "KB5066836",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066836",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.8519",
      "fix": "KB5066836",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066836",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.7919",
      "fix": "KB5066586",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066586",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.7919",
      "fix": "KB5066586",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066586",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022",
      "fixedVersion": "20348.4294",
      "fix": "KB5066782",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066782",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022 (Server Core installation)",
      "fixedVersion": "20348.4294",
      "fix": "KB5066782",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066782",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
      "fixedVersion": "25398.1913",
      "fix": "KB5066780",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066780",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}