{
  "cveId": "CVE-2020-0644",
  "url": "https://patchblox.com/security/cve/CVE-2020-0644",
  "summary": "CVE-2020-0644 is fixed in 33 products on 1 platform, first by KB4534271, released January 14, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Windows Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EAn elevation of privilege vulnerability exists when Microsoft Windows implements predictable memory section names. An attacker who successfully exploited this vulnerability could run arbitrary code as system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application designed to elevate privileges.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by correcting how Windows assigns memory to specific processes.\u003C/p\u003E",
  "published": "2020-01-14T08:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "epss": 0.00931,
  "epssPercentile": 0.60854,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-0644",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.3443",
      "fix": "KB4534271",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534271",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.3443",
      "fix": "KB4534271",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534271",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.1625",
      "fix": "KB4534276",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534276",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.1625",
      "fix": "KB4534276",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534276",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.1625",
      "fix": "KB4534276",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534276",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.1246",
      "fix": "KB4534293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534293",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.1246",
      "fix": "KB4534293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534293",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.1246",
      "fix": "KB4534293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534293",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.973",
      "fix": "KB4534273",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534273",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.973",
      "fix": "KB4534273",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534273",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.973",
      "fix": "KB4534273",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534273",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.18453",
      "fix": "KB4534306",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534306",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.18453",
      "fix": "KB4534306",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534306",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4534309",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534309",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4534297",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534297",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4534309",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534309",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4534297",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534297",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB4534297",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534297",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4534288",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534288",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4534283",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534283",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4534288",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534288",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4534283",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534283",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4534309",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534309",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4534297",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534297",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4534309",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534309",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4534297",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534297",
      "released": "2020-01-14T08:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.3443",
      "fix": "KB4534271",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534271",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.3443",
      "fix": "KB4534271",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534271",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.973",
      "fix": "KB4534273",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534273",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.973",
      "fix": "KB4534273",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534273",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1803  (Server Core Installation)",
      "fixedVersion": "17134.1246",
      "fix": "KB4534293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534293",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1903 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1909 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4528760",
      "url": "https://patchblox.com/security/fix/microsoft/kb4528760",
      "released": "2020-01-14T00:00:00Z"
    }
  ],
  "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"
  }
}