The Symantec Endpoint Protection Manager (SEPM) utilizes the Spring Framework indicated in CVE-2023-20860.
https://spring.io/security/cve-2023-20860
Endpoint Protection 14.3 RU6/RU7
Broadcom Engineering investigated this vulnerability and found that the Symantec Endpoint Protection Manager (SEPM) is not applicable to the feature used by Endpoint Protection.
CVE-2023-20860 is not a vulnerability on Endpoint Protection 14.3 RU6 or 14.3 RU7.