{
  "cveId": "CVE-2019-0959",
  "url": "https://patchblox.com/security/cve/CVE-2019-0959",
  "summary": "CVE-2019-0959 is fixed in 13 products on 1 platform, first by KB4503286, released June 11, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Windows Common Log File System Driver Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EAn elevation of privilege vulnerability exists when the \u003Ca href=\u0022https://technet.microsoft.com/library/security/dn848375.aspx#CLFS\u0022\u003EWindows Common Log File System (CLFS)\u003C/a\u003E driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how CLFS handles objects in memory.\u003C/p\u003E",
  "published": "2019-06-11T07:00:00Z",
  "severity": "Important",
  "cvss": 7,
  "epss": 0.03535,
  "epssPercentile": 0.89339,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0959",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1803  (Server Core Installation)",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1903 (Server Core installation)",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    }
  ],
  "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"
  }
}