{
  "cveId": "CVE-2020-16863",
  "url": "https://patchblox.com/security/cve/CVE-2020-16863",
  "summary": "CVE-2020-16863 is fixed in 4 products on 1 platform, first by KB4580345, released October 13, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Windows Remote Desktop Service Denial of Service Vulnerability",
  "description": "\u003Cp\u003EA denial of service vulnerability exists in Windows Remote Desktop Service when an attacker connects to the target system using RDP and sends specially crafted requests. An attacker who successfully exploited this vulnerability could cause the Remote Desktop Service on the target system to stop responding.\u003C/p\u003E\n\u003Cp\u003ETo exploit this vulnerability, an attacker would need to run a specially crafted application against a server which provides Remote Desktop Service.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by correcting how Remote Desktop Service handles connection requests.\u003C/p\u003E",
  "published": "2020-10-13T07:00:00Z",
  "severity": "Important",
  "cvss": 7.5,
  "epss": 0.05847,
  "epssPercentile": 0.9323,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-16863",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4580345",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580345",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4580387",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580387",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4580345",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580345",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4580387",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580387",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4580345",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580345",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4580387",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580387",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4580345",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580345",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4580387",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580387",
      "released": "2020-10-13T07:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}