{
  "cveId": "CVE-2024-43521",
  "url": "https://patchblox.com/security/cve/CVE-2024-43521",
  "summary": "CVE-2024-43521 is fixed in 11 products on 1 platform, first by KB5044293, released October 8, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Windows Hyper-V Denial of Service Vulnerability",
  "description": "",
  "published": "2024-10-08T12:00:00Z",
  "severity": "Important",
  "cvss": 7.5,
  "cwe": "Incorrect Check of Function Return Value",
  "epss": 0.02448,
  "epssPercentile": 0.84462,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43521",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5044342",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044342",
      "released": "2024-10-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5044342",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044342",
      "released": "2024-10-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5044343",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044343",
      "released": "2024-10-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5044343",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044343",
      "released": "2024-10-08T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.7428",
      "fix": "KB5044293",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044293",
      "released": "2024-10-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.7428",
      "fix": "KB5044293",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044293",
      "released": "2024-10-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.6414",
      "fix": "KB5044277",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044277",
      "released": "2024-10-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.6414",
      "fix": "KB5044277",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044277",
      "released": "2024-10-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022",
      "fixedVersion": "20348.2762",
      "fix": "KB5044281",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044281",
      "released": "2024-10-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022 (Server Core installation)",
      "fixedVersion": "20348.2762",
      "fix": "KB5044281",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044281",
      "released": "2024-10-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
      "fixedVersion": "25398.1189",
      "fix": "KB5044288",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044288",
      "released": "2024-10-08T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}