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.

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.

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 null pointer dereference vulnerability in Lenovo Power Management Driver for Windows 10, prior to version 1.67.17.54, that could cause systems to experience a blue screen error.

A privilege escalation vulnerability in Lenovo Power Management Driver for Windows 10, prior to version 1.67.17.54, that could allow unauthorized access to the driver's device object.

An unquoted search path vulnerability was reported in versions prior to 1.0.83.0 of the Synaptics Smart Audio UWP app associated with the DCHU audio drivers on Lenovo platforms that could allow an administrative user to execute arbitrary code.

Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.

A potential vulnerability in the SMI callback function used in the Legacy SD driver in some Lenovo ThinkPad, ThinkStation, and Lenovo Notebook models may allow arbitrary code execution.

An internal shell was included in BIOS image in some ThinkPad models that could allow escalation of privilege.

A potential vulnerability has been reported in Lenovo Power Management Driver versions prior to 1.67.17.48 leading to a buffer overflow which could cause a denial of service.

ThinkPad T460p and T470p BIOS Tamper Mechanism

The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad T460p, BIOS versions up to R07ET90W, and T470p, BIOS versions up to R0FET50W, which may allow for unauthorized access.

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.

A potential vulnerability in the SMI callback function used in the Legacy USB driver using boot services structure in runtime phase in some Lenovo ThinkPad models may allow arbitrary code execution.

Incorrect parameter validation in the synaTee component of Synaptics WBF drivers using an SGX enclave (all versions prior to 2019-11-15) allows a local user to execute arbitrary code in the enclave (that can compromise confidentiality of enclave data) via APIs that accept invalid pointers.

Incorrect access control in the firmware of Synaptics VFS75xx family fingerprint sensors that include external flash (all versions prior to 2019-11-15) allows a local administrator or physical attacker to compromise the confidentiality of sensor data via injection of an unverified partition table.

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 6.0.1.8644 and 6.0.1.8652, ThinkPad P50 6.0.1.8642, ThinkPad P50s 6.0.1.8642, ThinkPad P51s (20Jx, 20Kx) 6.0.1.8642, ThinkPad P51s (20Hx) 6.0.1.8642, ThinkPad P52s 6.0.1.8642, ThinkPad P70 6.0.1.8642, ThinkPad T25 6.0.1.8642, ThinkPad T460s 6.0.1.8642, ThinkPad T470 6.0.1.8642, ThinkPad T470s 6.0.1.8642, ThinkPad T480 6.0.1.8642, ThinkPad T480s 6.0.1.8642, ThinkPad T560 6.0.1.8642, ThinkPad T570 6.0.1.8642, ThinkPad T580 6.0.1.8642, ThinkPad X1 Carbon 8.66.76.72 and 8.66.68.54, ThinkPad X1 Carbon 6th 6.0.1.8642, ThinkPad X1 Carbon, X1 Yoga 8.66.62.92 and 8.66.62.54, ThinkPad X1 Tablet (20Gx) 6.0.1.8642, ThinkPad X1 Tablet (20Jx) 6.0.1.8642, ThinkPad X1 Tablet Gen 3 6.0.1.8642, ThinkPad X1 Yoga (20Jx) 8.66.88.60, ThinkPad X1 Yoga 3rd 6.0.1.8642, ThinkPad X280 6.0.1.8642, ThinkPad Yoga 260, S1 8.66.62.92 and 8.66.62.54.