{
  "cveId": "CVE-2019-1201",
  "url": "https://patchblox.com/security/cve/CVE-2019-1201",
  "summary": "CVE-2019-1201 is fixed in 16 products on 1 platform, first by KB4475531, released August 13, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Microsoft Word Remote Code Execution Vulnerability",
  "description": "\u003Cp\u003EA remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. The file could then take actions on behalf of the logged-on user with the same permissions as the current user.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Word software.\u003C/p\u003E\n\u003Cp\u003ETwo possible email attack scenarios exist for this vulnerability:\n\u2022\tWith the first email attack scenario, an attacker could send a specially crafted email message to the user and wait for the user to click on the message. When the message renders via Microsoft Word in the Outlook Preview Pane, an attack could be triggered.\n\u2022\tWith the second scenario, an attacker could attach a specially crafted file to an email, send it to a user, and convince them to open it.\u003C/p\u003E\n\u003Cp\u003EIn a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or other message, and then convince the user to open the specially crafted file.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how Microsoft Word handles files in memory.\u003C/p\u003E\n\u003Cp\u003EFor users who view their emails in Outlook, the Preview Pane attack vector can be mitigated by disabling this feature. The following registry keys can be set to disable the Preview Pane in Outlook on Windows, either via manual editing of the registry or by modifying Group Policy.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ENote\u003C/strong\u003E Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. For information about how to edit the registry, view the \u0022Changing Keys and Values\u0022 Help topic in Registry Editor (Regedit.exe) or view the \u0022Add and Delete Information in the Registry\u0022 and \u0022Edit Registry Data\u0022 Help topics in Regedt32.exe.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EOutlook 2010\u003C/strong\u003E:\n\u003Ccode\u003EHKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\Outlook\\Options\u003C/code\u003E\nDWORD: DisableReadingPane\nValue: 1\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EOutlook 2013\u003C/strong\u003E:\n\u003Ccode\u003EHKEY_CURRENT_USER\\Software\\Microsoft\\Office\\15.0\\Outlook\\Options\u003C/code\u003E\nDWORD: DisableReadingPane\nValue: 1\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EOutlook 2016, Outlook 2019, and Office 365 ProPlus\u003C/strong\u003E:\n\u003Ccode\u003EHKEY_CURRENT_USER\\Software\\Microsoft\\Office\\16.0\\Outlook\\Options\u003C/code\u003E\nDWORD: DisableReadingPane\nValue: 1\u003C/p\u003E",
  "published": "2019-08-13T12:00:00Z",
  "severity": "Critical",
  "epss": 0.0486,
  "epssPercentile": 0.9209,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1201",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Office 2010 Service Pack 2 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB4475531",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475531",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Office 2010 Service Pack 2 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB4475531",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475531",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Office Online Server",
      "fixedVersion": "",
      "fix": "KB4475528",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475528",
      "released": "2019-08-23T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Office Web Apps 2010 Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4475534",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475534",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Office Web Apps Server 2013 Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4462216",
      "url": "https://patchblox.com/security/fix/microsoft/kb4462216",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4462137",
      "url": "https://patchblox.com/security/fix/microsoft/kb4462137",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Enterprise Server 2016",
      "fixedVersion": "",
      "fix": "KB4475549",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475549",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Server 2010 Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4475530",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475530",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Server 2019",
      "fixedVersion": "",
      "fix": "KB4475555",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475555",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2010 Service Pack 2 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB4475533",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475533",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2010 Service Pack 2 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB4475533",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475533",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2013 RT Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4475547",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475547",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2013 Service Pack 1 (32-bit editions)",
      "fixedVersion": "",
      "fix": "KB4475547",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475547",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2013 Service Pack 1 (64-bit editions)",
      "fixedVersion": "",
      "fix": "KB4475547",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475547",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2016 (32-bit edition)",
      "fixedVersion": "",
      "fix": "KB4475540",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475540",
      "released": "2019-08-13T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Word 2016 (64-bit edition)",
      "fixedVersion": "",
      "fix": "KB4475540",
      "url": "https://patchblox.com/security/fix/microsoft/kb4475540",
      "released": "2019-08-13T12:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}