CVE-2018-8159: Microsoft Exchange Server

Medium severity, CVSS 5.4. EPSS: 3.6% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

Affected products

• Microsoft Exchange Server: version 2013 only; version 2016 only

Published 2018-05-09. Last modified 2026-06-17.