# CVE-2021-0055: Privilege escalation in Intel(R) NUC 9 Extreme Laptop Kit LAN Drivers

> An authenticated local user can escalate privileges due to insecure inherited permissions in Intel NUC 9 Extreme Laptop Kit LAN Drivers.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-wrff-x8vj-pq59

## What is CVE-2021-0055?

CVE-2021-0055 is a high-severity vulnerability in Intel(R) NUC 9 Extreme Laptop Kit LAN Drivers, published on 9 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insecure inherited permissions for some Intel(R) NUC 9 Extreme Laptop Kit LAN Drivers before version 10.42 may allow an authenticated user to potentially enable escalation of privilege via local access.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2021-0055?

It affects 4 products.


Products: Intel Lapqc71a Firmware, Intel Lapqc71b Firmware, Intel Lapqc71c Firmware, Intel Lapqc71d Firmware.

## How do I fix CVE-2021-0055?

No fix has been published for CVE-2021-0055 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-0055 being exploited?

There is no known exploitation of CVE-2021-0055 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) NUC 9 Extreme Laptop Kit LAN Drivers

- [CVE-2021-0196](https://insights.sbomify.com/CVE-2021-0196/): Privilege escalation in Intel(R) NUC 9 Extreme Laptop Kits (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-0055 and fix it if it is affected.

What it is: CVE-2021-0055 is a high-severity vulnerability in Intel(R) NUC 9 Extreme Laptop Kit LAN Drivers, published on 9 Jun 2021. 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-2021-0055 in the wild and no public exploit code.

Affected product: Intel(R) NUC 9 Extreme Laptop Kit LAN Drivers. 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-2021-0055/ (Markdown: https://insights.sbomify.com/CVE-2021-0055/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-0055
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-0055
- OSV: https://osv.dev/vulnerability/CVE-2021-0055

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-0055/
Summaries are generated and may contain mistakes; the official description above is the record.