CVE-2018-0850

Microsoft Outlook Elevation of Privilege Vulnerability

CVE-2018-0850 is fixed in 8 products on 1 platform, first by KB4011200, released February 13, 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
0.0503
92nd percentile

<p>An elevation of privilege vulnerability exists when Microsoft Outlook initiates processing of incoming messages without sufficient validation of the formatting of the messages. An attacker who successfully exploited the vulnerability could attempt to force Outlook to load a local or remote message store (over SMB).</p> <p>To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email.</p> <p>This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Outlook 2007 Service Pack 3 KB4011200 Feb 13, 2018
Microsoft Outlook 2010 Service Pack 2 (32-bit editions) KB4011711 Feb 13, 2018
Microsoft Outlook 2010 Service Pack 2 (64-bit editions) KB4011711 Feb 13, 2018
Microsoft Outlook 2013 RT Service Pack 1 KB4011697 Feb 13, 2018
Microsoft Outlook 2013 Service Pack 1 (32-bit editions) KB4011697 Feb 13, 2018
Microsoft Outlook 2013 Service Pack 1 (64-bit editions) KB4011697 Feb 13, 2018
Microsoft Outlook 2016 (32-bit edition) KB4011682 Feb 13, 2018
Microsoft Outlook 2016 (64-bit edition) KB4011682 Feb 13, 2018