Adobe Media Encoder Updates?

I have Adobe Media Encoder installed on my system via Adobe Technical Communication Suite.

My service desk has asked that I update it (due to a vulnerability being detected).

I have tried updating through the TCS (Tech Comm Suite) installer, but it just re-installed the original version (22.6 Build 65), whereas apparently the product is now on a December 2024 release (v 25.1).

Attempting to update through the application interface results in a "Updates have been disabled for this machine. Please contact your administrator." error - but all the other updates for TCS that I use (Captivate and RoboHelp) actively detect updates for the application (that the service desk installs for me, as I don't have admin on my work laptop). I do not know why I'd get the "updates disabled error" where everything else seems to allow updates (and nor does the service desk).

I do NOT have a Creative Cloud subscription so can't update through that.

Any guidance appreciated.

Thank you.