# CVE-2019-3918: Hardcoded credentials in Alcatel Lucent I-240W-Q GPON ONT

> Hardcoded credentials in Alcatel Lucent GPON ONT allow attackers to gain unauthorized access to Telnet and SSH interfaces.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Mar 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-cqmp-xjvq-p8g6

## What is CVE-2019-3918?

CVE-2019-3918 is a critical vulnerability in Tenable Alcatel Lucent I-240W-Q GPON ONT, published on 5 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 contains multiple hard coded credentials for the Telnet and SSH interfaces.

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2019-3918?

It affects 1 product.


Products: Nokia I-240w-Q Gpon Ont Firmware.

## How do I fix CVE-2019-3918?

No fix has been published for CVE-2019-3918 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3918 being exploited?

There is no known exploitation of CVE-2019-3918 in the wild and no public exploit code.

## Other vulnerabilities in Tenable Alcatel Lucent I-240W-Q GPON ONT

- [CVE-2019-3922](https://insights.sbomify.com/CVE-2019-3922/): Memory corruption in Alcatel Lucent I-240W-Q GPON ONT (critical 9.8)
- [CVE-2019-3919](https://insights.sbomify.com/CVE-2019-3919/): Command injection in Alcatel Lucent I-240W-Q GPON ONT (high 8.8)
- [CVE-2019-3920](https://insights.sbomify.com/CVE-2019-3920/): Command injection in Alcatel Lucent I-240W-Q GPON ONT (high 8.8)
- [CVE-2019-3921](https://insights.sbomify.com/CVE-2019-3921/): Memory corruption in Alcatel Lucent I-240W-Q GPON ONT (high 8.8)
- [CVE-2019-3917](https://insights.sbomify.com/CVE-2019-3917/): Missing authorization in Alcatel Lucent I-240W-Q GPON ONT (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3918 and fix it if it is affected.

What it is: CVE-2019-3918 is a critical vulnerability in Tenable Alcatel Lucent I-240W-Q GPON ONT, published on 5 Mar 2019. 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-2019-3918 in the wild and no public exploit code.

Affected product: Tenable Alcatel Lucent I-240W-Q GPON ONT. 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-2019-3918/ (Markdown: https://insights.sbomify.com/CVE-2019-3918/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3918
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3918
- OSV: https://osv.dev/vulnerability/CVE-2019-3918

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-3918/
Summaries are generated and may contain mistakes; the official description above is the record.