CVE-2017-8509

Microsoft Office Remote Code Execution Vulnerability

CVE-2017-8509 is fixed in 24 products on 1 platform, first by KB3203436, released June 13, 2017. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Moderate
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1824
97th percentile

<p>A remote code execution vulnerability exists in Microsoft Office 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. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user.</p> <p>To exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Office software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In 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 Instant Messenger message, and then convince the user to open the specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Office handles files in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Office 2007 Service Pack 3 KB3203436 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3191908 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3118389 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3203463 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3203460 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3191908 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3118389 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3203463 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3203460 Jun 13, 2017
Microsoft Office 2013 Service Pack 1 (32-bit editions) KB3162051 Jun 13, 2017
Microsoft Office 2013 Service Pack 1 (32-bit editions) KB3203386 Jun 13, 2017
Microsoft Office 2013 Service Pack 1 (64-bit editions) KB3162051 Jun 13, 2017
Microsoft Office 2013 Service Pack 1 (64-bit editions) KB3203386 Jun 13, 2017
Microsoft Office 2016 (32-bit edition) KB3191943 Jun 13, 2017
Microsoft Office 2016 (32-bit edition) KB3191944 Jun 13, 2017
Microsoft Office 2016 (32-bit edition) KB3178667 Jun 13, 2017
Microsoft Office 2016 (32-bit edition) KB3191882 Jun 13, 2017
Microsoft Office 2016 (64-bit edition) KB3191943 Jun 13, 2017
Microsoft Office 2016 (64-bit edition) KB3191944 Jun 13, 2017
Microsoft Office 2016 (64-bit edition) KB3178667 Jun 13, 2017
Microsoft Office 2016 (64-bit edition) KB3191882 Jun 13, 2017
Microsoft Office Compatibility Pack Service Pack 3 KB3203438 Jun 13, 2017
Microsoft Office Online Server 2016 KB3203485 Jun 13, 2017
Microsoft Office Web Apps 2010 KB3203466 Jun 13, 2017
Microsoft Office Web Apps 2013 Service Pack 1 KB3203391 Jun 13, 2017
Microsoft Office Web Apps Server 2013 Service Pack 1 KB3203391 Jun 13, 2017
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 KB3203430 Jun 13, 2017
Microsoft SharePoint Enterprise Server 2016 KB3203432 Jun 13, 2017
Microsoft Word 2007 Service Pack 3 KB3203441 Jun 13, 2017
Microsoft Word 2010 Service Pack 2 (32-bit editions) KB3203464 Jun 13, 2017
Microsoft Word 2010 Service Pack 2 (64-bit editions) KB3203464 Jun 13, 2017
Microsoft Word 2013 RT Service Pack 1 KB3203393 Jun 13, 2017
Microsoft Word 2013 Service Pack 1 (32-bit editions) KB3203393 Jun 13, 2017
Microsoft Word 2013 Service Pack 1 (64-bit editions) KB3203393 Jun 13, 2017
Microsoft Word 2016 (32-bit edition) KB3191945 Jun 13, 2017
Microsoft Word 2016 (64-bit edition) KB3191945 Jun 13, 2017
Microsoft Word for Mac 2011 KB3212223 Jun 13, 2017
Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 KB3203458 Jun 13, 2017