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 privilege escalation vulnerability was identified in Lenovo Active Protection System for ThinkPad systems versions earlier than 1.82.0.17. An attacker with local privileges could execute code with administrative privileges via an unquoted service path.

In the Lenovo Power Management driver before 1.67.12.24, a local user may alter the trackpoint's firmware and stop the trackpoint from functioning correctly. This issue only affects ThinkPad X1 Carbon 5th generation.

A local privilege escalation vulnerability was identified in the Realtek audio driver versions prior to 6.0.1.8224 in some Lenovo ThinkPad products. An attacker with local privileges could execute code with administrative privileges.

Realtek Audio Drivers for Windows, as used on the Lenovo ThinkPad X1 Carbon 20A7, 20A8, 20BS, and 20BT before 6.0.8882.1 and 20KH and 20KG before 6.0.8907.1 (and on many other Lenovo and non-Lenovo products), mishandles DLL preloading.

A vulnerability has been identified in a signed kernel driver for the BIOS of some ThinkPad systems that can allow an attacker with Windows administrator-level privileges to call System Management Mode (SMM) services. This could lead to a denial of service attack or allow certain BIOS variables or settings to be altered (such as boot sequence). The setting or changing of BIOS passwords is not affected by this vulnerability.

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.

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

A potential vulnerability in the LenovoFlashDeviceInterface SMI handler may allow an attacker with local access and elevated privileges to execute arbitrary code.

A vulnerability was reported in some ThinkPad BIOS that could allow a physical or local attacker with elevated privileges to tamper with BIOS firmware.

A buffer overflow has been identified in the BoardUpdateAcpiDxe driver in some Lenovo ThinkPad products which may allow an attacker with local access and elevated privileges to execute arbitrary code.

A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models could allow an attacker with physical or local access and elevated privileges the ability to bypass Secure Boot.

An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.  

An SMI handler input validation vulnerability in the ThinkPad X1 Fold Gen 1 could allow an attacker with local access and elevated privileges to execute arbitrary code.

An SMM driver input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.

A vulnerability was reported in ThinkPad T14s Gen 3 and X13 Gen3 that could cause the BIOS tamper detection mechanism to not trigger under specific circumstances which could allow unauthorized access.

A vulnerability was reported in ThinkPad T14s Gen 3 and X13 Gen3 that could cause the BIOS tamper detection mechanism to not trigger under specific circumstances which could allow unauthorized access.