timecraft, I don’t know how much of elementary OS this affects (and I’m fairly sure there’s not much you all can do, as that’s all upstream), but you might want to take a look at this and make sure none of your important devices are affected. AFAIK, it was only found in liblzma 5.6.0/5.6.1. I checked the package I have installed (elementary OS 7.1), and it was on 5.2.5, so hopefully 7.1 isn’t affected by this..?