Razer issued fixes for all the models launched from 2016 onward, but owners of the Blade and Blade Pro models released prior to 2016 will have to wait for a few more weeks to get the fixes. The vulnerability is identical to the early 2018 CVE-2018-251 backdoor that affected Apple's MacBooks, which were sold with the Manufacturing Mode still enabled.
https://www.notebookcheck.net/Razer-s-laptops-confirmed-to-be-affected-by-critical-vulnerability.416019.0.html