CVE-2023-21763: Microsoft Exchange Server Elevation of Privilege Vulnerability
First published: Tue Jan 10 2023(Updated: )
Microsoft Exchange Server Elevation of Privilege Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Exchange Server | =2016-cumulative_update_23 | |
| Microsoft Exchange Server | =2019-cumulative_update_11 | |
| Microsoft Exchange Server | =2019-cumulative_update_12 | |
| Microsoft Exchange Server 2016 | =23 | |
| Microsoft Exchange Server 2019 | =12 | |
| Microsoft Exchange Server 2019 | =11 | |
| =2016-cumulative_update_23 | ||
| =2019-cumulative_update_11 | ||
| =2019-cumulative_update_12 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-21763?
CVE-2023-21763 is a vulnerability in Microsoft Exchange Server that allows an attacker to elevate their privileges.
What software versions are affected by CVE-2023-21763?
CVE-2023-21763 affects Microsoft Exchange Server 2016 cumulative update 23, Microsoft Exchange Server 2019 cumulative update 11, and Microsoft Exchange Server 2019 cumulative update 12.
What is the severity of CVE-2023-21763?
CVE-2023-21763 has a severity rating of 7.8, which is considered high.
How can I fix CVE-2023-21763?
To fix CVE-2023-21763, update your Microsoft Exchange Server to the latest cumulative updates: Microsoft Exchange Server 2016 cumulative update 23, Microsoft Exchange Server 2019 cumulative update 11, or Microsoft Exchange Server 2019 cumulative update 12.
Where can I find more information about CVE-2023-21763?
You can find more information about CVE-2023-21763 on the Microsoft Security Response Center (MSRC) website.
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- canonical/microsoft exchange server
- version/microsoft exchange server/2016-cumulative_update_23
- version/microsoft exchange server/2019-cumulative_update_11
- version/microsoft exchange server/2019-cumulative_update_12
- canonical/microsoft exchange server 2016
- version/microsoft exchange server 2016/23
- canonical/microsoft exchange server 2019
- version/microsoft exchange server 2019/12
- version/microsoft exchange server 2019/11