CVE-2024-21410

Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 13, Microsoft Exchange Server 2019 Cumulative Update 14

Published 13 Feb 2024 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, microsoft.com

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 15 Feb 2024, with a remediation deadline of 7 Mar 2024 for US federal agencies.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21410 · Patch, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21410 · US Government Resource