# CVE-2016-4031: Missing authorization in n/a

> Attackers can send AT commands to Samsung devices via USB connection, potentially gaining unauthorized control or privileges.

- **Severity:** Medium 6.8 (`CVSS:3.0/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:** 13 Apr 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-8fpm-cqx9-mjm6

## What is CVE-2016-4031?

CVE-2016-4031 is a medium-severity missing authorization vulnerability in n/a, published on 13 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Samsung SM-G920F build G920FXXU2COH2 (Galaxy S6), SM-N9005 build N9005XXUGBOK6 (Galaxy Note 3), GT-I9192 build I9192XXUBNB1 (Galaxy S4 mini), GT-I9195 build I9195XXUCOL1 (Galaxy S4 mini LTE), and GT-I9505 build I9505XXUHOJ2 (Galaxy S4) devices allow attackers to send AT commands by plugging the device into a Linux host, aka SVE-2016-5301.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2016-4031?

It affects 5 products.


Products: Samsung Galaxy Note 3 Firmware, Samsung Galaxy S4 Firmware, Samsung Galaxy S4 Mini Firmware, Samsung Galaxy S4 Mini Lte Firmware, Samsung Galaxy S6 Firmware.

## How do I fix CVE-2016-4031?

No fix has been published for CVE-2016-4031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-4031 being exploited?

There is no known exploitation of CVE-2016-4031 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2016-4030](https://insights.sbomify.com/CVE-2016-4030/): Security feature bypass in n/a (medium 6.8)
- [CVE-2016-2036](https://insights.sbomify.com/CVE-2016-2036/): Null dereference in n/a (medium 5.5)
- [CVE-2016-4032](https://insights.sbomify.com/CVE-2016-4032/): Security feature bypass in n/a (medium 4.6)
- [CVE-2016-2567](https://insights.sbomify.com/CVE-2016-2567/): Security feature bypass in n/a (low 3.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-4031 and fix it if it is affected.

What it is: CVE-2016-4031 is a medium-severity missing authorization vulnerability in n/a, published on 13 Apr 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-2016-4031 in the wild and no public exploit code.

Affected product: n/a. 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-2016-4031/ (Markdown: https://insights.sbomify.com/CVE-2016-4031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-4031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-4031
- OSV: https://osv.dev/vulnerability/CVE-2016-4031

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-4031/
Summaries are generated and may contain mistakes; the official description above is the record.