{
  "cveId": "CVE-2020-1155",
  "url": "https://patchblox.com/security/cve/CVE-2020-1155",
  "summary": "CVE-2020-1155 is fixed in 20 products on 1 platform, first by KB4556812, released May 12, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Windows Runtime Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EAn elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context.\u003C/p\u003E\n\u003Cp\u003EAn attacker could exploit this vulnerability by running a specially crafted application on the victim system.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory.\u003C/p\u003E",
  "published": "2020-05-12T07:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "epss": 0.0258,
  "epssPercentile": 0.85311,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1155",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.1868",
      "fix": "KB4556812",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556812",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.1868",
      "fix": "KB4556812",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556812",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.1868",
      "fix": "KB4556812",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556812",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.1488",
      "fix": "KB4556807",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556807",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.1488",
      "fix": "KB4556807",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556807",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.1488",
      "fix": "KB4556807",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556807",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.1217",
      "fix": "KB4551853",
      "url": "https://patchblox.com/security/fix/microsoft/kb4551853",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.1217",
      "fix": "KB4551853",
      "url": "https://patchblox.com/security/fix/microsoft/kb4551853",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.1217",
      "fix": "KB4551853",
      "url": "https://patchblox.com/security/fix/microsoft/kb4551853",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.1217",
      "fix": "KB4551853",
      "url": "https://patchblox.com/security/fix/microsoft/kb4551853",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.1217",
      "fix": "KB4551853",
      "url": "https://patchblox.com/security/fix/microsoft/kb4551853",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1803  (Server Core Installation)",
      "fixedVersion": "17134.1488",
      "fix": "KB4556807",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556807",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1903 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1909 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4556799",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556799",
      "released": "2020-05-12T00:00:00Z"
    }
  ],
  "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"
  }
}