{
  "cveId": "CVE-2019-1303",
  "url": "https://patchblox.com/security/cve/CVE-2019-1303",
  "summary": "CVE-2019-1303 is fixed in 18 products on 1 platform, first by KB4516068, released September 10, 2019. 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 the Windows AppX Deployment Server improperly handles junctions.\u003C/p\u003E\n\u003Cp\u003ETo exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how AppX Deployment Server handles junctions.\u003C/p\u003E",
  "published": "2019-09-10T12:00:00Z",
  "severity": "Important",
  "epss": 0.01223,
  "epssPercentile": 0.68955,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1303",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "15063.2045",
      "fix": "KB4516068",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516068",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "15063.2045",
      "fix": "KB4516068",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516068",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.1387",
      "fix": "KB4516066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516066",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.1387",
      "fix": "KB4516066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516066",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.1387",
      "fix": "KB4516066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516066",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.1006",
      "fix": "KB4516058",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516058",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.1006",
      "fix": "KB4516058",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516058",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.1006",
      "fix": "KB4516058",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516058",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.737",
      "fix": "KB4512578",
      "url": "https://patchblox.com/security/fix/microsoft/kb4512578",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.737",
      "fix": "KB4512578",
      "url": "https://patchblox.com/security/fix/microsoft/kb4512578",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.737",
      "fix": "KB4512578",
      "url": "https://patchblox.com/security/fix/microsoft/kb4512578",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "18362.356",
      "fix": "KB4515384",
      "url": "https://patchblox.com/security/fix/microsoft/kb4515384",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "18362.356",
      "fix": "KB4515384",
      "url": "https://patchblox.com/security/fix/microsoft/kb4515384",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "18362.356",
      "fix": "KB4515384",
      "url": "https://patchblox.com/security/fix/microsoft/kb4515384",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.737",
      "fix": "KB4512578",
      "url": "https://patchblox.com/security/fix/microsoft/kb4512578",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.737",
      "fix": "KB4512578",
      "url": "https://patchblox.com/security/fix/microsoft/kb4512578",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1803  (Server Core Installation)",
      "fixedVersion": "17134.1006",
      "fix": "KB4516058",
      "url": "https://patchblox.com/security/fix/microsoft/kb4516058",
      "released": "2019-09-10T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1903 (Server Core installation)",
      "fixedVersion": "18362.356",
      "fix": "KB4515384",
      "url": "https://patchblox.com/security/fix/microsoft/kb4515384",
      "released": "2019-09-10T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}