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
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.
Yes. CVE-2017-11826 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2017-11826?
Critical severity, with a CVSS score of 7.8, published 3 March 2022.
Which products and versions are affected?
Microsoft Office 2010; Microsoft Word 2007, 2010, 2013, 2016; Microsoft SharePoint Server 2010, 2013, 2016; Microsoft Office Web Apps Server 2010, 2013; and 3 more.
Is there a fix for CVE-2017-11826?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2017-11826 attacked?
It is attacked with local access, in a network appliance.
Am I affected by CVE-2017-11826?
Check whether you run Microsoft Office. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
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.