{
  "cveId": "CVE-2020-0941",
  "url": "https://patchblox.com/security/cve/CVE-2020-0941",
  "summary": "CVE-2020-0941 is fixed in 36 products on 1 platform, first by KB4577015, released September 8, 2020. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Win32k Information Disclosure Vulnerability",
  "description": "\u003Cp\u003EAn information disclosure vulnerability exists when the win32k component improperly provides kernel information. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user\u2019s system.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, an attacker would have to either log on locally to an affected system, or convince a locally authenticated user to execute a specially crafted application.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how win32k handles objects in memory.\u003C/p\u003E",
  "published": "2020-09-08T12:00:00Z",
  "severity": "Important",
  "cvss": 5.5,
  "epss": 0.01129,
  "epssPercentile": 0.66582,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-0941",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.3930",
      "fix": "KB4577015",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577015",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.3930",
      "fix": "KB4577015",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577015",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.2107",
      "fix": "KB4577041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577041",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.2107",
      "fix": "KB4577041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577041",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.2107",
      "fix": "KB4577041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577041",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.1726",
      "fix": "KB4577032",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577032",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.1726",
      "fix": "KB4577032",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577032",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.1726",
      "fix": "KB4577032",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577032",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.1457",
      "fix": "KB4570333",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570333",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.1457",
      "fix": "KB4570333",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570333",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.1457",
      "fix": "KB4570333",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570333",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for 32-bit Systems",
      "fixedVersion": "19041.508",
      "fix": "KB4571756",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571756",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for ARM64-based Systems",
      "fixedVersion": "19041.508",
      "fix": "KB4571756",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571756",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for x64-based Systems",
      "fixedVersion": "19041.508",
      "fix": "KB4571756",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571756",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.18696",
      "fix": "KB4577049",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577049",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.18696",
      "fix": "KB4577049",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577049",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4577066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577066",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4577071",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577071",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4577066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577066",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4577071",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577071",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB4577066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577066",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4577038",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577038",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4577048",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577048",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4577038",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577038",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4577048",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577048",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4577066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577066",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4577071",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577071",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4577066",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577066",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4577071",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577071",
      "released": "2020-09-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.3930",
      "fix": "KB4577015",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577015",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.3930",
      "fix": "KB4577015",
      "url": "https://patchblox.com/security/fix/microsoft/kb4577015",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.1457",
      "fix": "KB4570333",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570333",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.1457",
      "fix": "KB4570333",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570333",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1903 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1909 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4574727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4574727",
      "released": "2020-09-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 2004 (Server Core installation)",
      "fixedVersion": "19041.508",
      "fix": "KB4571756",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571756",
      "released": "2020-09-08T00:00:00Z"
    }
  ],
  "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"
  }
}