An attacker with console access can use the UEFI shell (e.g., via the hexedit command) to patch the SecurityStub.dxe executable, effectively disabling Secure Boot. This allows execution of unsigned ...

Around 200,000 Linux computer systems from American computer maker Framework were shipped with signed UEFI shell components that could be exploited to bypass Secure Boot protections. According to ...

I'm running a Supermicro C7Z170M. Generally works OK, except when there's any significant Windows update. if there is, then 10 times out of 10, when Windows 10 reboots I'll get dumped to an EFI shell.

I tried installing Ubuntu 11.04 beta 1 on my MacBook Pro 13" (mid-2009, MacBookPro5,5). Since the installation, the machine has problems booting. The boot sequence goes like this: Boot 1 (after ...