CVE-2023-21529

high

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529

https://www.zerodayinitiative.com/blog/2024/9/11/exploiting-exchange-powershell-after-proxynotshell-part-2-approvedapplicationcollection

https://www.zerodayinitiative.com/blog/2024/9/4/exploiting-exchange-powershell-after-proxynotshell-part-1-multivaluedproperty

https://www.tenable.com/blog/microsofts-february-2023-patch-tuesday-addresses-75-cves-cve-2023-23376

Details

Source: Mitre, NVD

Published: 2023-02-14

Updated: 2024-05-29

Named Vulnerability: ProxyNotShellNamed Vulnerability: Microsoft Exchange RCE vulnerability

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.14582