CVE-2023-21529
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529 ; https://nvd.nist.gov/vuln/detail/CVE-2023-21529
Description
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 to <15.00.1497.047 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0 to <15.01.2507.021 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 11 | 15.02.0 to <15.02.0986.041 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 12 | 15.02.0 to <15.02.1118.025 |
References
1 LinksRecord Details
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Related Tool Categories
Tool categories that test for or protect against this vulnerability class.
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