CVE-2018-8244

Microsoft Outlook Elevation of Privilege Vulnerability

CVE-2018-8244 is fixed in 7 products on 1 platform, first by KB4022205, released June 12, 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
0.0580
93rd percentile

<p>An elevation of privilege vulnerability exists when Microsoft Outlook does not validate attachment headers properly. An attacker who successfully exploited the vulnerability could send an email with hidden attachments that would be opened or executed once a victim clicks a link within the email. Note that this does not bypass attachment filters, so blocked attachments will still be excluded.</p> <p>To exploit the vulnerability, the attacker could send a specially crafted email to a victim. The victim would then be required to click on a link within the email to open or execute a malicious attachment.</p> <p>This update addresses the vulnerability by changing the way that Outlook parses attachment headers.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Outlook 2010 Service Pack 2 (32-bit editions) KB4022205 Jun 12, 2018
Microsoft Outlook 2010 Service Pack 2 (64-bit editions) KB4022205 Jun 12, 2018
Microsoft Outlook 2013 RT Service Pack 1 KB4022169 Jun 12, 2018
Microsoft Outlook 2013 Service Pack 1 (32-bit editions) KB4022169 Jun 12, 2018
Microsoft Outlook 2013 Service Pack 1 (64-bit editions) KB4022169 Jun 12, 2018
Microsoft Outlook 2016 (32-bit edition) KB4022160 Jun 12, 2018
Microsoft Outlook 2016 (64-bit edition) KB4022160 Jun 12, 2018