CVE-2023-35317

Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Name	Vendor	Start Version	End Version
Windows_server_2012	Microsoft	- (including)	- (including)
Windows_server_2012	Microsoft	r2 (including)	r2 (including)
Windows_server_2016	Microsoft	- (including)	- (including)
Windows_server_2019	Microsoft	- (including)	- (including)
Windows_server_2022	Microsoft	- (including)	- (including)

Make fields transient to protect them from deserialization.
An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2023-35317
CWE	https://cwe.mitre.org/data/definitions/502.html

Deserialization of Untrusted Data