{
  "cveId": "CVE-2018-8120",
  "url": "https://patchblox.com/security/cve/CVE-2018-8120",
  "summary": "CVE-2018-8120 is fixed in 10 products on 1 platform, first by KB4103718, released May 8, 2018. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on March 15, 2022, with known ransomware use. Patch Radar priority: Patch now.",
  "title": "Win32k Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EAn elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. 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 this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.\u003C/p\u003E\n\u003Cp\u003EThe update addresses this vulnerability by correcting how Win32k handles objects in memory.\u003C/p\u003E",
  "published": "2018-05-08T07:00:00Z",
  "severity": "Important",
  "cvss": 7,
  "epss": 0.73288,
  "epssPercentile": 0.99463,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": true,
  "disclosed": false,
  "exploitabilityAssessment": "N/A",
  "kev": {
    "added": "2022-03-15T00:00:00Z",
    "due": "2022-04-05T00:00:00Z",
    "ransomware": true,
    "requiredAction": "Apply updates per vendor instructions."
  },
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8120",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103718",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103718",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103712",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103712",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103718",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103718",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103712",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103712",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103718",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103718",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103712",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103712",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103718",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103718",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4103712",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103712",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4103718",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103718",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4103712",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103712",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4131188",
      "url": "https://patchblox.com/security/fix/microsoft/kb4131188",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4131188",
      "url": "https://patchblox.com/security/fix/microsoft/kb4131188",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for Itanium-Based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4131188",
      "url": "https://patchblox.com/security/fix/microsoft/kb4131188",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4131188",
      "url": "https://patchblox.com/security/fix/microsoft/kb4131188",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4131188",
      "url": "https://patchblox.com/security/fix/microsoft/kb4131188",
      "released": "2018-05-08T07:00:00Z"
    }
  ],
  "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"
  }
}