# CVE-2016-9339: Path traversal in INTERSCHALT VDR G4e 5.220 and prior

> An attacker can read arbitrary files on the system via path traversal in the INTERSCHALT Maritime VDR G4e.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Feb 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-84wx-jv2w-9h93

## What is CVE-2016-9339?

CVE-2016-9339 is a medium-severity path traversal vulnerability in INTERSCHALT VDR G4e 5.220 and prior, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in INTERSCHALT Maritime Systems VDR G4e Versions 5.220 and prior. External input is used to construct paths to files and directories without properly neutralizing special elements within the pathname that could allow an attacker to read files on the system, a Path Traversal.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2016-9339?

It affects 1 product.


Products: Macgregor Interschalt Vdr G4e Firmware.

## How do I fix CVE-2016-9339?

No fix has been published for CVE-2016-9339 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-9339 being exploited?

There is no known exploitation of CVE-2016-9339 in the wild and no public exploit code.

## Other vulnerabilities in INTERSCHALT VDR G4e 5.220 and prior

- [CVE-2026-42929](https://insights.sbomify.com/CVE-2026-42929/): MacGregor Voyage Data Recorder (VDR) G4e Use of Hard-coded Credentials (high 8.7)
- [CVE-2026-42941](https://insights.sbomify.com/CVE-2026-42941/): MacGregor Voyage Data Recorder (VDR) G4e Use of Default Credentials (high 8.7)
- [CVE-2026-40425](https://insights.sbomify.com/CVE-2026-40425/): MacGregor Voyage Data Recorder (VDR) G4e Files or Directories Accessible to External Parties (medium 6.9)
- [CVE-2026-42951](https://insights.sbomify.com/CVE-2026-42951/): MacGregor Voyage Data Recorder (VDR) G4e Insufficiently Protected Credentials (medium 5.9)
- [CVE-2026-44611](https://insights.sbomify.com/CVE-2026-44611/): MacGregor Voyage Data Recorder (VDR) G4e Use of Password Hash With Insufficient Computational Effort (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-9339 and fix it if it is affected.

What it is: CVE-2016-9339 is a medium-severity path traversal vulnerability in INTERSCHALT VDR G4e 5.220 and prior, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-9339 in the wild and no public exploit code.

Affected product: INTERSCHALT VDR G4e 5.220 and prior. 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-2016-9339/ (Markdown: https://insights.sbomify.com/CVE-2016-9339/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-9339
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-9339
- OSV: https://osv.dev/vulnerability/CVE-2016-9339

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-9339/
Summaries are generated and may contain mistakes; the official description above is the record.