CVE-2018-8581: Microsoft Exchange Server Privilege Escalation Vulnerability

High severity, CVSS 7.4. Actively exploited: in CISA KEV since 2022-03-03. EPSS: 27.4% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

Affected products

• Microsoft Exchange Server: version 2010 only; version 2013 only; version 2016 only; version 2019 only

Published 2018-11-14. Last modified 2026-06-17.