A potential vulnerability in the SMI callback function used in Legacy USB driver using passed parameter without sufficient checking in some Lenovo ThinkPad models may allow arbitrary code execution.

There is a vulnerability with the Dolby DAX2 API system services in which a low-privileged user can terminate arbitrary processes that are running at a higher privilege. The following are affected products and versions: Legion Y520T_Z370 6.0.1.8642, AIO310-20IAP 6.0.1.8642, AIO510-22ISH 6.0.1.8642, AIO510-23ISH 6.0.1.8642, AIO520-22IKL 6.0.1.8642, AIO520-22IKU 6.0.1.8642, AIO520-24IKL 6.0.1.8642, AIO520-24IKU 6.0.1.8642, AIO520-27IKL 6.0.1.8642, AIO720-24IKB 6.0.1.8642, IdeaCentre 520S-23IKU 6.0.1.8642, ThinkCentre M700z 6.0.1.8642, ThinkCentre M800z 6.0.1.8642, ThinkCentre M810z 6.0.1.8642, ThinkCentre M818z 6.0.1.8642, ThinkCentre M900Z 6.0.1.8642, ThinkCentre M910z 6.0.1.8642, V410z(YT S4250) 6.0.1.8642, 330-14IKBR Win10:6.0.1.8652, 330-15IKBR Win10:6.0.1.8652, 330-15IKBR (Brazil) Win10:6.0.1.8652, 330-15IKBR Touch Win10:6.0.1.8652, 330-17IKBR Win10:6.0.1.8652, YOGA 730-13IKB Win10:6.0.1.8644, YOGA 730-15IKB Win10:6.0.1.8644, ThinkPad L560 6.0.1.8644 and 6.0.1.8652, ThinkPad L570 6…

Platform sample code firmware in 4th Generation Intel Core Processor, 5th Generation Intel Core Processor, 6th Generation Intel Core Processor, 7th Generation Intel Core Processor and 8th Generation Intel Core Processor contains a logic error which may allow physical attacker to potentially bypass firmware authentication.

In some Lenovo ThinkPad products, one BIOS region is not properly included in the checks, allowing injection of arbitrary code.