CVE-2016-3313

Microsoft Office Memory Corruption Vulnerability

CVE-2016-3313 is fixed in 10 products on 1 platform, first by KB3114893, released August 9, 2016. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.4983
98th percentile

<p>A remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>Exploitation of the vulnerability requires that a user 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 designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.</p> <p>Note that the Preview Pane is not an attack vector for this vulnerability. The security update addresses the vulnerability by correcting how Office handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Office 2007 Service Pack 3 KB3114893 Aug 9, 2016
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3114869 Aug 9, 2016
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3114869 Aug 9, 2016
Microsoft Office 2013 RT Service Pack 1 KB3115427 Aug 9, 2016
Microsoft Office 2013 Service Pack 1 (32-bit editions) KB3115427 Aug 9, 2016
Microsoft Office 2013 Service Pack 1 (64-bit editions) KB3115427 Aug 9, 2016
Microsoft Office 2016 (32-bit edition) KB3115415 Aug 9, 2016
Microsoft Office 2016 (64-bit edition) KB3115415 Aug 9, 2016
Microsoft Office Word Viewer KB3115479 Aug 9, 2016
Microsoft Word 2016 for Mac KB3179163 Aug 9, 2016