CVE-2022-40137 Memory corruption in BIOS

Medium 6.7 Published 30 Jan 2023 Updated 27 Mar 2025

Local attackers with elevated privileges can execute arbitrary code via a buffer overflow in the Lenovo BIOS WMI SMI Handler.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-40137?

CVE-2022-40137 is a medium-severity memory corruption vulnerability in Lenovo BIOS, published on 30 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A buffer overflow in the WMI SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to execute arbitrary code.

Weakness: CWE-120

Which versions are affected by CVE-2022-40137?

It affects 287 products.

Products include Lenovo Ideacentre 3-07ada05 Firmware, Lenovo Ideacentre 3-07imb05 Firmware, Lenovo Ideacentre 3 07iab7 Firmware, Lenovo Ideacentre 5-14acn6 Firmware, Lenovo Ideacentre 5-14are05 Firmware, Lenovo Ideacentre 5-14imb05 Firmware and 281 more.

How do I fix CVE-2022-40137?

No fix has been published for CVE-2022-40137 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-40137 being exploited?

There is no known exploitation of CVE-2022-40137 in the wild and no public exploit code.

Sources

Also known as GHSA-wqx8-q4r7-4c45.