{
  "cveId": "CVE-2020-1129",
  "url": "https://patchblox.com/security/cve/CVE-2020-1129",
  "summary": "CVE-2020-1129 is fixed in 27 products on 1 platform, first by KB4577015, released September 8, 2020. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "Microsoft Windows Codecs Library Remote Code Execution Vulnerability",
  "description": "\u003Cp\u003EA remote code execution vulnerability exists in the way that Microsoft Windows Codecs Library handles objects in memory. An attacker who successfully exploited this vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003C/p\u003E\n\u003Cp\u003EExploitation of the vulnerability requires that a program process a specially crafted image file.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by correcting how Microsoft Windows Codecs Library handles objects in memory.\u003C/p\u003E",
  "published": "2020-09-08T12:00:00Z",
  "severity": "Critical",
  "cvss": 8.8,
  "epss": 0.04181,
  "epssPercentile": 0.90981,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1129",
  "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 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"
  }
}