CVE-2023-21745: Microsoft Exchange Server Spoofing Vulnerability
Published Jan 10, 2023
·Updated
Microsoft Exchange Server Spoofing Vulnerability
Affected Software
6 affected componentsFixes available
Microsoft Exchange Server 2016=23
Microsoft Exchange Server 2019=12
Microsoft Exchange Server 2019=11
Microsoft Exchange Server=2016-cumulative_update_23
Microsoft Exchange Server=2019-cumulative_update_11
Microsoft Exchange Server=2019-cumulative_update_12
Event History
Jan 10, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverity
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2023-21745?
The severity of CVE-2023-21745 is high.
2
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.
3
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.
4
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.
5
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.