CVE-2023-21761

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Microsoft Exchange Server Information Disclosure Vulnerability

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-918

Affected software

VendorProductVersions
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 23>= 15.01.0, < 15.01.2507.017
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 11>= 15.02.0, < 15.02.0986.037
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 12>= 15.02.0, < 15.02.1118.021

References

Timeline

Published
Jan 10, 2023
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2023

CVE-2023-217628.0Microsoft Exchange Server Spoofing VulnerabilityCVE-2023-217637.8Microsoft Exchange Server Elevation of Privilege VulnerabilityCVE-2023-217647.8Microsoft Exchange Server Elevation of Privilege VulnerabilityCVE-2023-217657.8Windows Print Spooler Elevation of Privilege VulnerabilityCVE-2023-217664.7Windows Overlay Filter Information Disclosure VulnerabilityCVE-2023-217677.8Windows Overlay Filter Elevation of Privilege VulnerabilityCVE-2023-217687.8Windows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityCVE-2023-217697.5Microsoft Message Queuing (MSMQ) Denial of Service VulnerabilityCVE-2023-21775.5A null pointer dereference issue was found in the sctp network protocol in net/sctp/stream_sched.c in Linux Kernel. If stream_in allocation CVE-2023-217717.0Windows Local Session Manager (LSM) Elevation of Privilege VulnerabilityCVE-2023-217727.8Windows Kernel Elevation of Privilege VulnerabilityCVE-2023-217737.8Windows Kernel Elevation of Privilege Vulnerability
CVE-2023-21761: High severity, CVSS 7.5 | Vulnix