CVE-2023-21709 CRITICAL

CVE-2023-21709: Microsoft Exchange Server Elevation of Privilege Vulnerability

Vendor Microsoft
Product Microsoft Exchange Server 2019 Cumulative Update 12
Weakness CWE-307 · Brute force
Published August 8, 2023
Last update February 27, 2025
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

Key dates

02Disclosure timeline

August 8, 2023 CVE published
February 27, 2025 Record updated