Junglewise Threat Intelligence

CVE-2017-11826: Microsoft Office Remote Code Execution Vulnerability

CVE-2017-11826 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-03-03

Technologies: Microsoft Office, Microsoft SharePoint Server, Microsoft Word, Microsoft Office Online Server. Vendors: Microsoft.

Executive brief

A remote code execution vulnerability exists in Microsoft Office when the software fails to properly handle objects in memory. An attacker can exploit this by convincing a user to open a specially crafted file, allowing the execution of arbitrary code in the context of the current user.

Affected products

  • Microsoft Office 2010
  • Microsoft Word 2007, 2010, 2013, 2016
  • Microsoft SharePoint Server 2010, 2013, 2016
  • Microsoft Office Web Apps Server 2010, 2013
  • Microsoft Office Online Server 2016
  • Microsoft Word Viewer
  • Microsoft Word Automation Services

Timeline

  • 2017-10-17: disclosed: Initial disclosure and vendor advisory published.
  • 2017-11-01: other: Third-party analysis of zero-day exploit published.
  • 2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

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