Dell BIOS/UEFI Under Attack From New Vulnerabilities - Use FWUPD For The Latest Updates

Written by Michael Larabel in LVFS on 24 June 2021 at 12:07 PM EDT. 30 Comments
For those wondering about the recent skyrocketing in LVFS/FWUPD usage for Linux firmware updates, it appears to be attributed to Dell pushing out a massive number of updates with more than one hundred models impacted by newly-disclosed BIOS/UEFI vulnerabilities.

Eclypsium has discovered multiple vulnerabilities around Dell's "BIOSConnect" feature within their BIOS/UEFI. These vulnerabilities could lead to a privileged network adversary impersonating and gaining arbitrary code execution support at the BIOS/UEFI level. Some 128 different Dell models across their consumer and business devices are believed to be impacted.

This pre-boot remote execution code discovery can happen even on systems with Secure Boot enabled and other features.

More details on these nasty low-level vulnerabilities via

Dell has been publishing updated BIOS/UEFI for not only their Windows customers but also posting the new firmware to LVFS so it can be deployed quickly on Linux. Those with Dell desktops and laptops should run sudo fwupdmgr update as soon as possible.
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Michael Larabel

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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