Right now this is occurring at the point of installation utilizing SEPS version 14.2_RU2 on Catalina Machines. (My Environment is Catalina Only, Haven't tested on older OS)
So test your deployment / symantec installations out to see if you get this.
It is flagged at a temporary location
You cannot get past the screen until you remove the UninstallerTool.
I believe we must update the package installer & update all current machines by March 30th.
No official documentation (as far as I know) from Symantec / Broadcom.
Matt on slack provided his workaround : https://macadmins.slack.com/archives/C09MMQVH6/p1583914412251600?thread_ts=1582931159.076000&cid=C09...
Following this... I have a lot of machines on 10.13.x and 10.14.x.
I hope that doesn’t affect older Symantec engines. The newest installer with 10.15 is an abject disaster. I’m able to get it installed and deployed, but it is a CPU hog worse than usual. Luckily Catalina isn’t going to get serious in my org until summer.