Five high-severity security flaws in Dell's firmware update driver are impacting potentially hundreds of millions of Dell desktops, laptops, notebooks and tablets. The bugs have gone undisclosed for 12 years, and could allow the ability to bypass security products, execute code and pivot to other parts of the network for lateral movement.

https://labs.sentinelone.com/cve-2021-21551-hundreds-of-millions-of-dell-computers-at-risk-due-to-multiple-bios-driver-privilege-escalation-flaws/