The Meltdown vulnerability in Intel chips show that even hardware can have security issues.
Avira is aware of the recent Microsoft security update KB4056892 (OS Build 16299.192) from Jan 3, 2018, and a possible compatibility issue with antivirus software.
With our latest product update 188.8.131.52 Avira Antivirus Free, Avira Antivirus Pro and Avira Antivirus Server are compatible with the Microsoft update.
We recommend to our users to opt for automatic updates of their antivirus software as well as to install all Windows updates immediately.
Avira Antivirus products are compatible with MacOS and Android updates aiming to fix Meltdown and Specter vulnerabilities.