CVE-2020-17143: Microsoft Exchange Server

High severity, CVSS 8.8. EPSS: 70.6% chance of exploitation in the next 30 days.

Microsoft Exchange Server Information Disclosure Vulnerability

Affected products

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

Published 2020-12-10. Last modified 2026-06-17.