CVE-2023-21764

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVE-2023-21764 is fixed in 3 products on 1 platform, first by KB5022143, released January 10, 2023. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0058

48th percentile

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft Exchange Server 2016 Cumulative Update 23	KB5022143	Jan 10, 2023
Microsoft Exchange Server 2019 Cumulative Update 11	KB5022193	Jan 10, 2023
Microsoft Exchange Server 2019 Cumulative Update 12	KB5022193	Jan 10, 2023

Details

Published
January 10, 2023
Weakness
Untrusted Search Path
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21764

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