# CVE-2022-40134: Information disclosure in BIOS

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

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Jan 2023
- **Updated:** 27 Mar 2025
- **Also known as:** GHSA-p7vc-qcj9-2mj9

## 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 (Out-of-bounds Read)

## Which versions are affected by CVE-2022-40134?

It affects 325 products.


Products: 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, Lenovo Ideacentre 5-14iob6 Firmware, Lenovo Ideacentre 510s-07icb Firmware, Lenovo Ideacentre 510s-07ick Firmware, Lenovo Ideacentre 5 14iab7 Firmware, Lenovo Ideacentre A340-22igm Firmware, Lenovo Ideacentre A340-24igm Firmware, Lenovo Ideacentre C5-14imb05 Firmware, Lenovo Ideacentre Creator 5-14iob6 Firmware, Lenovo Ideacentre G5-14amr05 Firmware, Lenovo Ideacentre G5-14imb05 Firmware, Lenovo Ideacentre Gaming 5-14acn6 Firmware, Lenovo Ideacentre Gaming 5-14iob6 Firmware, Lenovo Ideacentre Gaming 5 17acn7 Firmware, Lenovo Ideacentre Gaming 5 17iab7 Firmware and 305 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.

## Other vulnerabilities in Lenovo BIOS

- [CVE-2023-43567](https://insights.sbomify.com/CVE-2023-43567/): Memory corruption in Desktop BIOS (medium 6.7)
- [CVE-2023-43569](https://insights.sbomify.com/CVE-2023-43569/): Memory corruption in Desktop BIOS (medium 6.7)
- [CVE-2023-43570](https://insights.sbomify.com/CVE-2023-43570/): Code injection in Desktop BIOS (medium 6.7)
- [CVE-2023-43571](https://insights.sbomify.com/CVE-2023-43571/): Memory corruption in Desktop BIOS (medium 6.7)
- [CVE-2023-43573](https://insights.sbomify.com/CVE-2023-43573/): Memory corruption in Desktop BIOS (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-40134 and fix it if it is affected.

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

Affected product: Lenovo BIOS. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-40134/ (Markdown: https://insights.sbomify.com/CVE-2022-40134/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-40134
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-40134
- OSV: https://osv.dev/vulnerability/CVE-2022-40134

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-40134/
Summaries are generated and may contain mistakes; the official description above is the record.