{
  "cveId": "CVE-2021-36958",
  "url": "https://patchblox.com/security/cve/CVE-2021-36958",
  "summary": "CVE-2021-36958 is fixed in 40 products on 1 platform, first by KB5005573, released September 14, 2021. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Windows Print Spooler Remote Code Execution Vulnerability",
  "description": "\u003Cp\u003EA remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003C/p\u003E",
  "published": "2021-08-11T12:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "epss": 0.30794,
  "epssPercentile": 0.98261,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": true,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36958",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.4651",
      "fix": "KB5005573",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005573",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.4651",
      "fix": "KB5005573",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005573",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.2183",
      "fix": "KB5005568",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005568",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.2183",
      "fix": "KB5005568",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005568",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.2183",
      "fix": "KB5005568",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005568",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for 32-bit Systems",
      "fixedVersion": "18363.1801",
      "fix": "KB5005566",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005566",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for ARM64-based Systems",
      "fixedVersion": "18363.1801",
      "fix": "KB5005566",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005566",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1909 for x64-based Systems",
      "fixedVersion": "18363.1801",
      "fix": "KB5005566",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005566",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 2004 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 20H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 20H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 20H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H1 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H1 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H1 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.19060",
      "fix": "KB5005569",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005569",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.19060",
      "fix": "KB5005569",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005569",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB5005615",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005615",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB5005633",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005633",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB5005615",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005615",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB5005633",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005633",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB5005627",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005627",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB5005613",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005613",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB5005627",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005627",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB5005613",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005613",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB5005613",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005613",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB5005615",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005615",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB5005633",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005633",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005615",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005615",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005633",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005633",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB5005606",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005606",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB5005618",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005618",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005606",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005606",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005618",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005618",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB5005606",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005606",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB5005618",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005618",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005606",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005606",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005618",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005618",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5005607",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005607",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5005623",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005623",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005607",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005607",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005623",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005623",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5005627",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005627",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5005613",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005613",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005627",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005627",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005613",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005613",
      "released": "2021-09-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.4651",
      "fix": "KB5005573",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005573",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.4651",
      "fix": "KB5005573",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005573",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.2183",
      "fix": "KB5005568",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005568",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.2183",
      "fix": "KB5005568",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005568",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 2004 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 20H2 (Server Core Installation)",
      "fixedVersion": "",
      "fix": "KB5005565",
      "url": "https://patchblox.com/security/fix/microsoft/kb5005565",
      "released": "2021-09-14T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}