You can find SDL Tridion Sites hotfixes on the hotfixes page. This can also be found in the subnavigation for the Tridion Sites Developers Group.
As a general practice, it's a good idea to work with Support on any specific issues and to be sure to remain up-to-date on the latest version of your software, which often include any and all fixes that apply for that version.
For example, if using SDL Web 8, you can get…