Gigabyte UEFI Firmware Vulnerability Allows Code Execution in SMM Privileged Mode

Gigabyte UEFI Firmware Vulnerability Allows Code Execution in SMM Privileged Mode Critical security vulnerabilities in Gigabyte motherboard firmware have been disclosed that allow attackers to execute arbitrary code in System Management Mode (SMM), the most privileged execution level on x86 processors. The flaws, identified by security researchers at Binarly REsearch, affect multiple Gigabyte motherboard models and stem from improper validation ofSystem ManagementInterrupt (SMI) handlers in UEFI...