# CVE-2019-3409: Command injection in ZTE WF820+ LTE Outdoor CPE

> Unauthorized users can execute arbitrary commands on ZTE WF820+ LTE Outdoor CPE devices due to inadequate parameter verification.

- **Severity:** Critical 9.0 (`CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/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:** 11 Jun 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-wrf8-q5q3-2m58

## What is CVE-2019-3409?

CVE-2019-3409 is a critical command injection vulnerability in ZTE WF820+ LTE Outdoor CPE, published on 11 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

All versions up to UKBB_WF820+_1.0.0B06 of ZTE WF820+ LTE Outdoor CPE product are impacted by command injection vulnerability. Due to inadequate parameter verification, unauthorized users can take advantage of this vulnerability to control the user terminal system.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2019-3409?

It affects 1 product.


Products: Zte Wf820\+ Lte Outdoor Cpe Firmware.

## How do I fix CVE-2019-3409?

No fix has been published for CVE-2019-3409 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3409 being exploited?

There is no known exploitation of CVE-2019-3409 in the wild and no public exploit code.

## Other vulnerabilities in ZTE WF820+ LTE Outdoor CPE

- [CVE-2019-3410](https://insights.sbomify.com/CVE-2019-3410/): Cross-site request forgery in ZTE WF820+ LTE Outdoor CPE (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3409 and fix it if it is affected.

What it is: CVE-2019-3409 is a critical command injection vulnerability in ZTE WF820+ LTE Outdoor CPE, published on 11 Jun 2019. 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-2019-3409 in the wild and no public exploit code.

Affected product: ZTE WF820+ LTE Outdoor CPE. 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-2019-3409/ (Markdown: https://insights.sbomify.com/CVE-2019-3409/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3409
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3409
- OSV: https://osv.dev/vulnerability/CVE-2019-3409

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3409/
Summaries are generated and may contain mistakes; the official description above is the record.