{
  "cveId": "CVE-2020-16949",
  "url": "https://patchblox.com/security/cve/CVE-2020-16949",
  "summary": "CVE-2020-16949 is fixed in 7 products on 1 platform, first by KB4486663, released October 13, 2020. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Microsoft Outlook Denial of Service Vulnerability",
  "description": "\u003Cp\u003EA denial of service vulnerability exists in Microsoft Outlook software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could cause a remote denial of service against a system.\u003C/p\u003E\n\u003Cp\u003EExploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Outlook server.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how Microsoft Outlook handles objects in memory.\u003C/p\u003E",
  "published": "2020-10-13T07:00:00Z",
  "severity": "Moderate",
  "cvss": 4.7,
  "epss": 0.02968,
  "epssPercentile": 0.87318,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-16949",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2010 Service Pack 2 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB4486663",
      "url": "https://patchblox.com/security/fix/microsoft/kb4486663",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2010 Service Pack 2 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB4486663",
      "url": "https://patchblox.com/security/fix/microsoft/kb4486663",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2013 RT Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4484524",
      "url": "https://patchblox.com/security/fix/microsoft/kb4484524",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2013 Service Pack 1 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB4484524",
      "url": "https://patchblox.com/security/fix/microsoft/kb4484524",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2013 Service Pack 1 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB4484524",
      "url": "https://patchblox.com/security/fix/microsoft/kb4484524",
      "released": "2020-10-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2016 (32-bit edition)",
      "fixedVersion": "",
      "fix": "KB4486671",
      "url": "https://patchblox.com/security/fix/microsoft/kb4486671",
      "released": "2020-10-15T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2016 (64-bit edition)",
      "fixedVersion": "",
      "fix": "KB4486671",
      "url": "https://patchblox.com/security/fix/microsoft/kb4486671",
      "released": "2020-10-15T07:00:00Z"
    }
  ],
  "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"
  }
}