CVE-2023-21529

No fix known ExploitedEPSS 59%CVSS 8.8

Microsoft Exchange Server Remote Code Execution Vulnerability

Published 2023-02-14 · In CISA KEV since 2026-04-13 · CVE record · OSV

Products: Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 11, Microsoft Exchange Server 2019 Cumulative Update 12