{
  "cveId": "CVE-2026-42896",
  "url": "https://patchblox.com/security/cve/CVE-2026-42896",
  "summary": "CVE-2026-42896 is fixed in 8 products on 1 platform, first by KB5089549, released May 12, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Windows DWM Core Library Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EInteger overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.\u003C/p\u003E",
  "published": "2026-05-12T07:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "cwe": "Integer Overflow or Wraparound",
  "epss": 0.00284,
  "epssPercentile": 0.20987,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42896",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089549",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089549",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089466",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089466",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089549",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089549",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089466",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089466",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089549",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089549",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089466",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089466",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089549",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089549",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5089466",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089466",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 26H1 for ARM64-based Systems",
      "fixedVersion": "28000.2113",
      "fix": "KB5089548",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089548",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 version 26H1 for x64-based Systems",
      "fixedVersion": "28000.2113",
      "fix": "KB5089548",
      "url": "https://patchblox.com/security/fix/microsoft/kb5089548",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "26100.32860",
      "fix": "KB5087539",
      "url": "https://patchblox.com/security/fix/microsoft/kb5087539",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "26100.32772",
      "fix": "KB5087423",
      "url": "https://patchblox.com/security/fix/microsoft/kb5087423",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "26100.32860",
      "fix": "KB5087539",
      "url": "https://patchblox.com/security/fix/microsoft/kb5087539",
      "released": "2026-05-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "26100.32772",
      "fix": "KB5087423",
      "url": "https://patchblox.com/security/fix/microsoft/kb5087423",
      "released": "2026-05-12T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}