Affected: GIGABYTE intel 600 chipset Motherboard, GIGABYTE intel 700 chipset Motherboard, GIGABYTE intel 800 chipset Motherboard, GIGABYTE AMD 600 chipset motherboard, GIGABYTE AMD 800 chipset motherboard, GIGABYTE AMD TRX50 chipset motherboard

Certain motherboard models developed by GIGABYTE has a Protection Mechanism Failure vulnerability. Because IOMMU was not properly enabled, unauthenticated physical attackers can use a DMA-capable PCIe device to read and write arbitrary physical memory before the OS kernel and its security features are loaded.