Experts at security firm Cylance disclosed two UEFI flaws that can be exploited by attackers to install a backdoor on some Gigabyte BRIX mini PCs. Experts tested the latest firmware for GB-BSi7H-6500 and GB-BXi7-5775 mini PCs and discovered that lack of some protection feature that could allow an attacker to exploit the flaws to deliver a ransomware payload that prevents the system from booting. The company has already developed a firmware update, version vF7, that is currently in testing phase and will be soon released.”]
Source: http://securityaffairs.co/wordpress/57693/hacking/uefi-vulnerabilities-gigabyte.html