# CVE-2022-1107: Privilege escalation in ThinkPad BIOS

> An attacker with elevated privileges can execute arbitrary code via a vulnerability in the SmmOEMInt15 SMI handler 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:** 22 Apr 2022
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-qmwg-7c3h-jmrr

## What is CVE-2022-1107?

CVE-2022-1107 is a medium-severity vulnerability in Lenovo ThinkPad BIOS, published on 22 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

During an internal product security audit a potential vulnerability due to use of Boot Services in the SmmOEMInt15 SMI handler was discovered in some ThinkPad models could be exploited by an attacker with elevated privileges that could allow for execution of code.

Weakness: CWE-269 (Improper Privilege Management), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-1107?

It affects 30 products.


Products: Lenovo Thinkpad 11e Firmware, Lenovo Thinkpad 11e Yoga Firmware, Lenovo Thinkpad Helix Firmware, Lenovo Thinkpad L560 Firmware, Lenovo Thinkpad L570 Firmware, Lenovo Thinkpad P50s Firmware, Lenovo Thinkpad P51s Firmware, Lenovo Thinkpad P52s Firmware, Lenovo Thinkpad S540 Firmware, Lenovo Thinkpad T550 Firmware, Lenovo Thinkpad T560 Firmware, Lenovo Thinkpad T570 Firmware, Lenovo Thinkpad T580 Firmware, Lenovo Thinkpad W540 Firmware, Lenovo Thinkpad W541 Firmware, Lenovo Thinkpad W550s Firmware, Lenovo Thinkpad X1 Carbon 3rd Gen Firmware, Lenovo Thinkpad X1 Carbon 4th Gen Firmware, Lenovo Thinkpad X1 Carbon 5th Gen Kabylake Firmware, Lenovo Thinkpad X1 Carbon 5th Gen Skylake Firmware and 10 more.

## How do I fix CVE-2022-1107?

No fix has been published for CVE-2022-1107 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-1107 being exploited?

There is no known exploitation of CVE-2022-1107 in the wild and no public exploit code.

## Other vulnerabilities in Lenovo ThinkPad BIOS

- [CVE-2020-8320](https://insights.sbomify.com/CVE-2020-8320/): Privilege escalation in BIOS (medium 6.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-1107 and fix it if it is affected.

What it is: CVE-2022-1107 is a medium-severity vulnerability in Lenovo ThinkPad BIOS, published on 22 Apr 2022. 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-2022-1107 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-2022-1107/ (Markdown: https://insights.sbomify.com/CVE-2022-1107/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-1107
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-1107
- OSV: https://osv.dev/vulnerability/CVE-2022-1107

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-1107/
Summaries are generated and may contain mistakes; the official description above is the record.