https://libreboot.org/
Libreboot is a free/opensource BIOS/UEFI boot firmware distribution based on coreboot with GNU boot loader GRUB, SeaBIOS and U-Boot, for booting Linux/BSD.
open sourceboot firmwarelibrebootfreebios
https://www.sentinelone.com/es/resources/general/labscon-replay-breaking-firmware-trust-from-the-other-side-exploiting-early-boot-phases-pre-efi/
Vulnerabilities in System Management Mode (SMM) and more general UEFI applications/drivers (DXE) are receiving increased attention from security researchers....
replaybreakingfirmwaretrustside
https://thehackernews.com/2025/01/palo-alto-firewalls-found-vulnerable-to.html?m=0
Seven vulnerabilities, including BootHole and PixieFail, in Palo Alto firewalls risk Secure Boot integrity and enable sophisticated attacks.
palo altosecure bootfirewallsfoundvulnerable