Intel has addressed a vulnerability in the configuration of several CPU series that allow an attacker to alter the behavior of the chip’s SPI Flash memory â??a mandatory component used during the boot-up process [1, 2, 3]. […]

https://www.bleepingcomputer.com/news/security/intel-spi-flash-flaw-lets-attackers-alter-or-delete-bios-uefi-firmware/