MSRC-CVE-2023-21764 — Microsoft Exchange Server Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Security updates
15.02.0986.037 — https://support.microsoft.com/help/5022193
15.01.2507.017 — https://support.microsoft.com/help/5022143

Vulnerabilities 1

High 7.8

CVE-2023-21764

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 Microsoft Exchange Server 2019 Cumulative Update 12 Microsoft Exchange Server 2019 Cumulative Update 11

Jan 10, 2023

Revision history

2023-01-10 #1
Information published.

References

CVE-2023-21764 Microsoft Exchange Server Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21764
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss