# CVE-2018-9062: BIOS Modules Unprotected by Intel Boot Guard Vulnerable to Physical Attack

> Attackers with physical access can inject arbitrary code into unprotected BIOS regions, bypassing Intel Boot Guard security checks.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Jul 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-4w9p-jrr8-ffxf

## What is CVE-2018-9062?

CVE-2018-9062 is a medium-severity vulnerability in some Lenovo ThinkPads, published on 19 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In some Lenovo ThinkPad products, one BIOS region is not properly included in the checks, allowing injection of arbitrary code.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2018-9062?

It affects 39 products.


Products: Lenovo E42-80 Firmware, Lenovo E42-80 Isk Firmware, Lenovo E52-80 Firmware, Lenovo E52-80 Isk Firmware, Lenovo Miix 720-12ikb Firmware, Lenovo Thinkpad E480 Firmware, Lenovo Thinkpad E580 Firmware, Lenovo Thinkpad L380 Firmware, Lenovo Thinkpad L480 Firmware, Lenovo Thinkpad L580 Firmware, Lenovo Thinkpad P51 Firmware, Lenovo Thinkpad P51s Firmware, Lenovo Thinkpad P52 Firmware, Lenovo Thinkpad P52s Firmware, Lenovo Thinkpad P71 Firmware, Lenovo Thinkpad P72 Firmware, Lenovo Thinkpad S1 Firmware, Lenovo Thinkpad T25 Firmware, Lenovo Thinkpad T470 Firmware, Lenovo Thinkpad T470p Firmware and 19 more.

## How do I fix CVE-2018-9062?

No fix has been published for CVE-2018-9062 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-9062 being exploited?

There is no known exploitation of CVE-2018-9062 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-9062 and fix it if it is affected.

What it is: CVE-2018-9062 is a medium-severity vulnerability in some Lenovo ThinkPads, published on 19 Jul 2018. 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-2018-9062 in the wild and no public exploit code.

Affected product: some Lenovo ThinkPads. 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-2018-9062/ (Markdown: https://insights.sbomify.com/CVE-2018-9062/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-9062
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-9062
- OSV: https://osv.dev/vulnerability/CVE-2018-9062

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-9062/
Summaries are generated and may contain mistakes; the official description above is the record.