{
  "cveId": "CVE-2016-3366",
  "url": "https://patchblox.com/security/cve/CVE-2016-3366",
  "summary": "CVE-2016-3366 is fixed in 9 products on 1 platform, first by KB3118303, released September 13, 2016. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Microsoft Outlook Spoofing Vulnerability",
  "description": "\u003Cp\u003EA spoofing vulnerability exists when Microsoft Outlook does not strictly adhere to RFC2046, and improperly identifies the end of a MIME attachment. An improper MIME attachment ending may cause antivirus or antispam scanning to not work as intended.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, an attacker could send a specially crafted email attachment to a user in an attempt to launch a social engineering attack, such as phishing.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how Outlook determines the end of MIME messages.\u003C/p\u003E",
  "published": "2016-09-13T12:00:00Z",
  "severity": "Important",
  "epss": 0.16232,
  "epssPercentile": 0.96959,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Unlikely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-3366",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2007 Service Pack 3",
      "fixedVersion": "",
      "fix": "KB3118303",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118303",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2010 Service Pack 2 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB3118313",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118313",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2010 Service Pack 2 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB3118313",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118313",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2013 RT Service Pack 1",
      "fixedVersion": "",
      "fix": "KB3118280",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118280",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2013 Service Pack 1 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB3118280",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118280",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2013 Service Pack 1 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB3118280",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118280",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2016 (32-bit edition)",
      "fixedVersion": "",
      "fix": "KB3118293",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118293",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2016 (64-bit edition)",
      "fixedVersion": "",
      "fix": "KB3118293",
      "url": "https://patchblox.com/security/fix/microsoft/kb3118293",
      "released": "2016-09-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Outlook 2016 for Mac",
      "fixedVersion": "",
      "fix": "KB3186807",
      "url": "https://patchblox.com/security/fix/microsoft/kb3186807",
      "released": "2016-09-13T12:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T06:34:28Z"
}