Lenovo thanks Binarly efiXplorer team for reporting these issues.

Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash storage.

A buffer over-read vulnerability was reported in the ThinkPadX13s BIOS LenovoSetupConfigDxe driver that could allow a local attacker with elevated privileges to cause information disclosure.

A buffer over-read vulnerability was reported in the ThinkPadX13s BIOS driver that could allow a local attacker with elevated privileges to cause information disclosure.

A buffer over-read vulnerability was reported in the ThinkPadX13s BIOS LenovoRemoteConfigUpdateDxe driver that could allow a local attacker with elevated privileges to cause information disclosure.

A buffer over-read vulnerability was reported in the ThinkPadX13s BIOS PersistenceConfigDxe driver that could allow a local attacker with elevated privileges to cause information disclosure.

A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.