# CVE-2017-5721: Memory corruption in NUC Kits

> Local attackers can execute arbitrary code on Intel NUC devices by exploiting insufficient input validation in system firmware.

- **Severity:** High 7.5 (`CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/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:** 11 Oct 2017
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-hg9f-cr6x-3gxw

## What is CVE-2017-5721?

CVE-2017-5721 is a high-severity memory corruption vulnerability in Intel Corporation NUC Kits, published on 11 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insufficient input validation in system firmware for Intel NUC7i3BNK, NUC7i3BNH, NUC7i5BNK, NUC7i5BNH, NUC7i7BNH versions BN0049 and below allows local attackers to execute arbitrary code via manipulation of memory.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-5721?

It affects 5 products.


Products: Intel Nuc7i3bnh Firmware, Intel Nuc7i3bnk Firmware, Intel Nuc7i5bnh Firmware, Intel Nuc7i5bnk Firmware, Intel Nuc7i7bnh Firmware.

## How do I fix CVE-2017-5721?

No fix has been published for CVE-2017-5721 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-5721 being exploited?

There is no known exploitation of CVE-2017-5721 in the wild and no public exploit code.

Public exploit code:

- CVE-2017-5721 Proof-of-Concept (github_poc): https://github.com/embedi/smm_usbrt_poc

## Other vulnerabilities in Intel Corporation NUC Kits

- [CVE-2017-5700](https://insights.sbomify.com/CVE-2017-5700/): Hardcoded credentials in NUC Kits (high 8.4)
- [CVE-2017-5722](https://insights.sbomify.com/CVE-2017-5722/): Security feature bypass in NUC Kits (high 7.5)
- [CVE-2017-5701](https://insights.sbomify.com/CVE-2017-5701/): Security feature bypass in NUC Kits (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-5721 and fix it if it is affected.

What it is: CVE-2017-5721 is a high-severity memory corruption vulnerability in Intel Corporation NUC Kits, published on 11 Oct 2017. 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-2017-5721 in the wild and no public exploit code.

Affected product: Intel Corporation NUC Kits. 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-2017-5721/ (Markdown: https://insights.sbomify.com/CVE-2017-5721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-5721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-5721
- OSV: https://osv.dev/vulnerability/CVE-2017-5721

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-5721/
Summaries are generated and may contain mistakes; the official description above is the record.