CVE-2018-8430

Word PDF Remote Code Execution Vulnerability

CVE-2018-8430 is fixed in 5 products on 1 platform, first by KB4032246, released September 11, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
n/a
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2304
97th percentile

<p>A remote code execution vulnerability exists in Microsoft Word if a user opens a specially crafted PDF file. An attacker who successfully exploited the vulnerability could cause arbitrary code to execute in the context of the current user.</p> <p>To exploit the vulnerability, an attacker must entice the user to open a specially crafted PDF file.</p> <p>The update addresses the vulnerability by modifying how Microsoft Word parses PDF files.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Word 2013 RT Service Pack 1 KB4032246 Sep 11, 2018
Microsoft Word 2013 Service Pack 1 (32-bit editions) KB4032246 Sep 11, 2018
Microsoft Word 2013 Service Pack 1 (64-bit editions) KB4032246 Sep 11, 2018
Microsoft Word 2016 (32-bit edition) KB4092447 Sep 11, 2018
Microsoft Word 2016 (64-bit edition) KB4092447 Sep 11, 2018