You can download the hotfix directly from the following URL (This example assumes that you want to download Hotfix 8)
http://download.adobe.com/pub/adobe/coldfusion/hotfix_008.jar

Similarly, for update 10, it is as follows:

http://download.adobe.com/pub/adobe/coldfusion/hotfix_010.jar

If you want to download earlier/newer hotfixes replace the jar path in the above URL with the hotfix number that you want.

Ex:- http://download.adobe.com/pub/adobe/coldfusion/hotfix_00<HFNumber>.jar

Download/Copy this hotfix_008.jar to a any directory on your machine where you want to maintain repository of Hotfix installers.

And then open the command prompt (with Run as Administrator” option for all Vista/Win7/Win8 family OSes
and in case of Mac OS X/Unix/Solaris you have to run hotfix with sudo user or root user.)

Then run the just downloaded jar file from command prompt:
First cd to where it is downloaded and then run as follows. Change path as per your installation.
>C:ColdFusion10jrebinjava -jar hotfix_008.jar