CVE-2018-8378

Microsoft Office Information Disclosure Vulnerability

CVE-2018-8378 is fixed in 15 products on 1 platform, first by KB4022195, released August 14, 2018. 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
0.0731
94th percentile

<p>An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software.</p> <p>The security update addresses the vulnerability by properly initializing the affected variable.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Excel Viewer 2007 Service Pack 3 KB4022195 Aug 14, 2018
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB4022198 Aug 14, 2018
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3213636 Aug 14, 2018
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB4022198 Aug 14, 2018
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3213636 Aug 14, 2018
Microsoft Office 2013 RT Service Pack 1 KB4032239 Aug 14, 2018
Microsoft Office 2013 Service Pack 1 (32-bit editions) KB4032239 Aug 14, 2018
Microsoft Office 2013 Service Pack 1 (64-bit editions) KB4032239 Aug 14, 2018
Microsoft Office 2016 (32-bit edition) KB4032233 Aug 14, 2018
Microsoft Office 2016 (64-bit edition) KB4032233 Aug 14, 2018
Microsoft Office Web Apps 2010 Service Pack 2 KB4032220 Aug 14, 2018
Microsoft Office Web Apps 2013 Service Pack 1 KB4022238 Aug 14, 2018
Microsoft Office Word Viewer KB4092434 Aug 14, 2018
Microsoft Office Word Viewer KB4092433 Aug 14, 2018
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 KB4022234 Aug 14, 2018
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 KB4018392 Aug 14, 2018
Microsoft SharePoint Enterprise Server 2016 KB4032256 Aug 14, 2018
Microsoft SharePoint Server 2013 Service Pack 1 KB4022236 Aug 14, 2018
Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 KB4032215 Aug 14, 2018