To be clear, there is “can you” and “should you”. The good news is that you “can”.  See a blog post I did:

https://www.carehart.org/blog/client/index.cfm/2014/10/30/finding_coldfusion_installers_and_updates

As for “should you”, well, beware that CF10 stopped being updated in 2017. There have been several updates since then (to CF11, CF2016, and CF2018), some of which are very important security updates. Those have NOT been backported to CF10. (And CF11’s last update was earlier this year.)

So there’s how to do that. Just be sure to be careful on whether to do it.

Either way, please let us know how it goes, getting the installer you seek.

I doubt it’s still available. Both CF 10 and OS X Mountain Lion are unsupported software.