Hi,
You can use the Creative Cloud Packager to build an update package and push that out to your users.
https://helpx.adobe.com/creative-cloud/packager.html
Alternatively you can have the updater (Adobe Update Manager) ping a local network location instead of Adobe. This can be set up using the Adobe Update Server Setup Tool
https://helpx.adobe.com/creative-cloud/packager/update-server-setup-tool.html