MSRC-CVE-2023-21761 — Microsoft Exchange Server Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is sensitive information.

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

Vulnerabilities 1

High 7.5

CVE-2023-21761

Microsoft Exchange Server Information Disclosure Vulnerability

Microsoft Exchange Server Information Disclosure 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-2023-21761 Microsoft Exchange Server Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21761
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