Dell released a new BIOS firmware version 1.7.4 for the Latitude 7300 and 7400 on May 22, 2020. This release is again marked Urgent and contains the following fixes and enhancements:


  • Firmware updated to address CVE-2020-5363


  • Updated the Embedded Controller Engine Firmware

This version 1.7.4 is already available on Fedora 32 via fwupdmgr tool.

[root@matht436 ~]# fwupdmgr refresh
Fetching signature
Downloading…             [***************************************]
Fetching metadata
Downloading…             [***************************************]
Successfully downloaded new metadata: 1 local device supported
[root@matht436 ~]# fwupdmgr update
• Thunderbolt Controller has no available firmware updates
• SSDPEKKF512G8 NVMe INTEL 512GB has no available firmware updates
Upgrade available for System Firmware from 1.7.3 to 1.7.4
Latitude 7400 must remain plugged into a power source for the duration of the update to avoid damage. Continue with update? [Y|n]:
Downloading 1.7.4 for System Firmware...
Fetching firmware
Downloading…             [***************************************] Less than one minute remaining…
Decompressing…           [***************************************]
Authenticating…          [***************************************]
Updating System Firmware…[             /                         ]
Scheduling…              [***************************************]
Successfully installed firmware
• Touchpad has no available firmware updates
• Unifying Receiver has no available firmware updates

An update requires a reboot to complete. Restart now? [y|N]:

There was no problem after rebooting.