CVE-2023-21709

Microsoft Exchange Server Elevation of Privilege Vulnerability

Score

CVSS 3.1 9.8 Critical

Status

Modified - secure@microsoft.com

Published

2023-08-08

Last modified

2026-08-10

Weaknesses

CWE-307

Affected products

• Exchange Server (Microsoft)
• Exchange Server 2016 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21709