Code Injection in Microsoft Exchange Server - CVE-2023-21707
Published: February 14, 2023 / Updated: May 23, 2024
Vulnerability identifier: #VU72173
CSH Severity: High
CVSS v4 BT: 7.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID: CVE-2023-21707
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote user can send a specially crafted request and execute arbitrary code in the context of the server's account.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2023-21707
Install updates from vendor's website.
Microsoft Exchange Server - addressed in versions 2013 CU23 Feb23SU 15.00.1497.047, 2016 CU23 Feb23SU 15.01.2507.021, 2019 CU11 Feb23SU 15.02.0986.041, 2019 CU12 Feb23SU 15.02.1118.025