I just wanted to let you all know that they have released a new build version
[they haven't updated the same link on this post] but it will get updated shortly after a couple of hours. I have just updated it without uninstalling.. just updating on top of it and reboot and voila... it works...
View attachment 263632
You will find the Full changelogs on there website:- Symantec Changelog Update
Mostly they are updated for Apache Log4j 2 library
14.3 RU3 Refresh
On December 15, 2021, Symantec released a new build (14.3 RU3 build 5427) that fixes a potential vulnerability in the Symantec Endpoint Protection Manager. Symantec products may be susceptible to a flaw in the Apache Log4j 2 library JNDI lookup mechanism.
Note:- Don't select "web and cloud access protection" during installation since it needs the key for it to work.
If you guys want me to provide download links.. just let me know

but I am surely they will update and provide the links without my help on comss.ru website