A newly discovered serious vulnerability – dubbed “BootHole” – with a CVSS rating of 8.2 could unleash attacks that could gain total control of billions of Linux and Windows devices.

Security firm Eclypsium researchers released details today about how the flaw can take over nearly any device’s boot process. The majority of laptops, desktops, servers, and workstations are affected by the vulnerability, as well as network appliances and other special-purpose equipment used in industrial, healthcare, financial, and other industries.

The bug in question – CVE-2020-10713 – is found in the GRUB2 bootloader used by most Linux systems that can be used to gain arbitrary code execution during the boot process, even when Secure Boot is enabled.

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