Billions of devices running modern operating systems such as Linux and Windows could be at risk from a wide-ranging new security vulnerability, new research as found.

Security firm Eclypsium has discovered a EUFI Secure Boot vulnerability that allows unfettered access to affected systems. Virtually all modern servers, client PCs, and other PC-based equipment use UEFI, an interface between an OS and platform firmware. All versions of UEFI feature Secure Boot framework specifically designed to protect unauthorized access to the machine during boot-up process. The framework relies on cryptographic keys to authenticate the code that is allowed to execute when the system starts up. 

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