CVE-2023-21745: Microsoft Exchange Server Spoofing Vulnerability
First published: Tue Jan 10 2023(Updated: )
Microsoft Exchange Server Spoofing 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 2019 | =12 | |
| Microsoft Exchange Server 2016 | =23 | |
| 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 the severity of CVE-2023-21745?
The severity of CVE-2023-21745 is high.
What is Microsoft Exchange Server Spoofing Vulnerability?
Microsoft Exchange Server Spoofing Vulnerability is a vulnerability that allows an attacker to impersonate an email sender by spoofing the source address.
Which versions of Microsoft Exchange Server are affected by CVE-2023-21745?
Microsoft Exchange Server 2016 (Cumulative Update 23), Exchange Server 2019 (Cumulative Update 11 and Cumulative Update 12) are affected by CVE-2023-21745.
How do I fix CVE-2023-21745?
To fix CVE-2023-21745, Microsoft has released patches for Exchange Server 2016 (Cumulative Update 23) and Exchange Server 2019 (Cumulative Update 11 and Cumulative Update 12). You can download the patches from the Microsoft website.
Where can I find more information about CVE-2023-21745?
You can find more information about CVE-2023-21745 on the Microsoft Security Response Center website.
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- canonical/microsoft exchange server
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- version/microsoft exchange server/2019-cumulative_update_11
- version/microsoft exchange server/2019-cumulative_update_12
- canonical/microsoft exchange server 2019
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- canonical/microsoft exchange server 2016
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- version/microsoft exchange server 2019/11