UEFI/Bios Backdoors on Gigabyte Boards

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Four critical UEFI firmware bugs (CVSS 8.2) in Gigabyte Intel motherboards enable attackers with admin privileges to hijack SMM, bypass Secure Boot, and implant undetectable firmware malware.

Gigabyte is rolling out BIOS updates — users should update firmware and re-enable Secure Boot immediately.

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