Deserialization of Untrusted Data in Microsoft Exchange Server - CVE-2023-36756
Published: September 12, 2023 / Updated: September 14, 2023
Vulnerability identifier: #VU80672
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-36756
CWE-ID: CWE-502
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data within the ApprovedApplicationCollection class. A remote user can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2023-36756
Install updates from vendor's website.
Microsoft Exchange Server - addressed in versions 2016 CU23 Aug23SUv2 15.01.2507.032, 2019 CU12 Sep23SU 15.02.1118.037, 2019 CU13 Aug23SUv2 15.02.1258.025