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.

Some Lenovo brand notebook systems do not have write protections properly configured in the system BIOS. This could enable an attacker with physical or administrative access to a system to be able to flash the BIOS with an arbitrary image and potentially run malicious BIOS code.

A vulnerability has been identified in some Lenovo Notebook and ThinkServer systems where an attacker with administrative privileges on a system could install a program that circumvents Intel Management Engine (ME) protections. This could result in a denial of service or privilege escalation attack on the system.

The BIOS for Lenovo ThinkCentre E93, M6500t/s, M6600, M6600q, M6600t/s, M73p, M800, M83, M8500t/s, M8600t/s, M900, M93, and M93P devices; ThinkServer RQ940, RS140, TS140, TS240, TS440, and TS540 devices; and ThinkStation E32, P300, and P310 devices might allow local users or physically proximate attackers to bypass the Secure Boot protection mechanism by leveraging an AMI test key.