CVE-2021-31196: Microsoft Exchange Server Information Disclosure Vulnerability

High severity, CVSS 7.2. Actively exploited: in CISA KEV since 2024-08-21. EPSS: 54.1% chance of exploitation in the next 30 days.

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected products

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

Published 2021-07-14. Last modified 2026-08-10.