Attackers can attack Nvidia's Jetson Linux and IGX OS to compromise systems. Security updates are available for download.
Many architectures such as ARM eschew UEFI for something more like coreboot, linuxboot, or LK, where it boots a small Linux kernel that then kexec’s into a much larger kernel. However ...
Speaking of Patch Tuesday, Microsoft seemingly enabled native UEFI and Secure Boot recently on Windows 7. UEFI Secure Boot was something the Redmond company had introduced with Windows 8.