CVE-2022-40134 Information disclosure in BIOS

Medium 4.4 Published 30 Jan 2023 Updated 27 Mar 2025

Local attackers with elevated privileges can read SMM memory via a BIOS handler flaw, exposing sensitive system data.

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-2022-40134?

CVE-2022-40134 is a medium-severity 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

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.

Weakness: CWE-125

Which versions are affected by CVE-2022-40134?

It affects 325 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 319 more.

How do I fix CVE-2022-40134?

No fix has been published for CVE-2022-40134 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-40134 being exploited?

There is no known exploitation of CVE-2022-40134 in the wild and no public exploit code.

Sources

Also known as GHSA-p7vc-qcj9-2mj9.