# CVE-2022-4574: Other in ThinkPad BIOS

> Local attackers with elevated privileges can execute arbitrary code via an input validation flaw in Lenovo ThinkPad BIOS.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **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 Oct 2023
- **Updated:** 9 Sep 2024
- **Also known as:** GHSA-fm9f-7rqx-chvx

## What is CVE-2022-4574?

CVE-2022-4574 is a medium-severity vulnerability in Lenovo ThinkPad BIOS, published on 30 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

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.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-4574?

It affects 54 products.


Products: Lenovo Thinkpad L14 Firmware, Lenovo Thinkpad L14 Gen 2 Firmware, Lenovo Thinkpad L15 Firmware, Lenovo Thinkpad L15 Gen 2 Firmware, Lenovo Thinkpad P14s Gen 1 Firmware, Lenovo Thinkpad P14s Gen 2 Firmware, Lenovo Thinkpad P14s Gen 3 Firmware, Lenovo Thinkpad P15 Gen 1 Firmware, Lenovo Thinkpad P15 Gen 2 Firmware, Lenovo Thinkpad P15s Gen 1 Firmware, Lenovo Thinkpad P15s Gen 2 Firmware, Lenovo Thinkpad P15v Gen 1 Firmware, Lenovo Thinkpad P15v Gen 2 Firmware, Lenovo Thinkpad P15v Gen 3 Firmware, Lenovo Thinkpad P16 Gen 1 Firmware, Lenovo Thinkpad P16s Gen 1 Firmware, Lenovo Thinkpad P17 Gen 1 Firmware, Lenovo Thinkpad P17 Gen 2 Firmware, Lenovo Thinkpad P1 Gen 3 Firmware, Lenovo Thinkpad P1 Gen 4 Firmware and 34 more.

## How do I fix CVE-2022-4574?

No fix has been published for CVE-2022-4574 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4574 being exploited?

There is no known exploitation of CVE-2022-4574 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4574 and fix it if it is affected.

What it is: CVE-2022-4574 is a medium-severity vulnerability in Lenovo ThinkPad BIOS, published on 30 Oct 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-2022-4574 in the wild and no public exploit code.

Affected product: Lenovo ThinkPad 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-2022-4574/ (Markdown: https://insights.sbomify.com/CVE-2022-4574/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4574
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4574
- OSV: https://osv.dev/vulnerability/CVE-2022-4574

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-4574/
Summaries are generated and may contain mistakes; the official description above is the record.