CVE-2018-8265

Microsoft Exchange Remote Code Execution Vulnerability

CVE-2018-8265 is fixed in 2 products on 1 platform, first by KB4459266, released October 9, 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
0.1927
97th percentile

<p>A remote code execution vulnerability exists in the way Microsoft Exchange software parses specially crafted email messages. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the system user. An attacker could then install programs; view, change, add, or delete data.</p> <p>To exploit this vulnerability, an attacker would need to send a specially crafted email to an affected Exchange server, and then convince the recipient to perform multiple actions while replying to the message.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Exchange parses specially crafted email messages.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Exchange Server 2013 Cumulative Update 21 KB4459266 Oct 9, 2018
Microsoft Exchange Server 2016 Cumulative Update 10 KB4459266 Oct 9, 2018