A team of security researchers has discovered high-risk security vulnerabilities in more than 40 drivers from at least 20 different vendors. Vulnerabilities could allow attackers to gain most privileged permission on the system and hide malware in a way that remains undetected over time, sometimes for years. Device driver flaws can be more dangerous than other application vulnerabilities because it allows an attacker access to the “negative” firmware rings that lie beneath the operating system and maintain persistence on the device, just like LoJax malware.
Source: https://thehackernews.com/2019/08/windows-driver-vulnerability.html