{
  "cveId": "CVE-2020-1464",
  "url": "https://patchblox.com/security/cve/CVE-2020-1464",
  "summary": "CVE-2020-1464 is fixed in 44 products on 1 platform, first by KB4571694, released August 11, 2020. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.",
  "title": "Windows Spoofing Vulnerability",
  "description": "\u003Cp\u003EA spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files.\u003C/p\u003E\n\u003Cp\u003EIn an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by correcting how Windows validates file signatures.\u003C/p\u003E",
  "published": "2020-08-11T12:00:00Z",
  "severity": "Important",
  "cvss": 5.3,
  "epss": 0.38946,
  "epssPercentile": 0.98599,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": true,
  "disclosed": true,
  "exploitabilityAssessment": "Exploitation Detected",
  "kev": {
    "added": "2021-11-03T00:00:00Z",
    "due": "2022-05-03T00:00:00Z",
    "ransomware": false,
    "requiredAction": "Apply updates per vendor instructions."
  },
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1464",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.3866",
      "fix": "KB4571694",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571694",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.3866",
      "fix": "KB4571694",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571694",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.2045",
      "fix": "KB4571741",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571741",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.2045",
      "fix": "KB4571741",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571741",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.2045",
      "fix": "KB4571741",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571741",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.1667",
      "fix": "KB4571709",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571709",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.1667",
      "fix": "KB4571709",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571709",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.1667",
      "fix": "KB4571709",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571709",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.1397",
      "fix": "KB4565349",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565349",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.1397",
      "fix": "KB4565349",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565349",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.1397",
      "fix": "KB4565349",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565349",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for 32-bit Systems",
      "fixedVersion": "19041.450",
      "fix": "KB4566782",
      "url": "https://patchblox.com/security/fix/microsoft/kb4566782",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for ARM64-based Systems",
      "fixedVersion": "19041.450",
      "fix": "KB4566782",
      "url": "https://patchblox.com/security/fix/microsoft/kb4566782",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for x64-based Systems",
      "fixedVersion": "19041.450",
      "fix": "KB4566782",
      "url": "https://patchblox.com/security/fix/microsoft/kb4566782",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.18666",
      "fix": "KB4571692",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571692",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.18666",
      "fix": "KB4571692",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571692",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4571729",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571729",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4571719",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571719",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4571729",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571729",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4571719",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571719",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4571703",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571703",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4571723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571723",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4571703",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571703",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4571723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571723",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB4571703",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571703",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4571729",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571729",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4571719",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571719",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571729",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571729",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571719",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571719",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4571730",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571730",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4571746",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571746",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571730",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571730",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571746",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571746",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4571730",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571730",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4571746",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571746",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571730",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571730",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571746",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571746",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4571702",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571702",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4571736",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571736",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571702",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571702",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571736",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571736",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4571703",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571703",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4571723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571723",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571703",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571703",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4571723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571723",
      "released": "2020-08-11T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.3866",
      "fix": "KB4571694",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571694",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.3866",
      "fix": "KB4571694",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571694",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.1397",
      "fix": "KB4565349",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565349",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.1397",
      "fix": "KB4565349",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565349",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1903 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1909 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4565351",
      "url": "https://patchblox.com/security/fix/microsoft/kb4565351",
      "released": "2020-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 2004 (Server Core installation)",
      "fixedVersion": "19041.450",
      "fix": "KB4566782",
      "url": "https://patchblox.com/security/fix/microsoft/kb4566782",
      "released": "2020-08-11T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}