{
  "cveId": "CVE-2025-55331",
  "url": "https://patchblox.com/security/cve/CVE-2025-55331",
  "summary": "CVE-2025-55331 is fixed in 19 products on 1 platform, first by KB5066791, released October 14, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Windows PrintWorkflowUserSvc Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EUse after free in Windows PrintWorkflowUserSvc allows an authorized attacker to elevate privileges locally.\u003C/p\u003E",
  "published": "2025-10-14T12:00:00Z",
  "severity": "Important",
  "cvss": 7,
  "cwe": "Use After Free",
  "epss": 0.00351,
  "epssPercentile": 0.28983,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Unlikely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55331",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 21H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066791",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066791",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 23H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 23H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066793",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066793",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022",
      "fixedVersion": "20348.4294",
      "fix": "KB5066782",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066782",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022 (Server Core installation)",
      "fixedVersion": "20348.4294",
      "fix": "KB5066782",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066782",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
      "fixedVersion": "25398.1913",
      "fix": "KB5066780",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066780",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5066835",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066835",
      "released": "2025-10-14T00:00:00Z"
    }
  ],
  "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"
  }
}