# CVE-2018-8855: Misconfiguration in SmartServer 1

> Echelon SmartServer devices allow unencrypted web connections and insecure FTP updates by default, exposing configuration and firmware to interception or modification.

- **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:** 24 Jul 2018
- **Updated:** 2 Jun 2026
- **Also known as:** GHSA-r959-mqqr-2qrv

## What is CVE-2018-8855?

CVE-2018-8855 is a critical vulnerability in Echelon SmartServer 1, published on 24 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Echelon SmartServer 1 all versions, SmartServer 2 all versions prior to release 4.11.007, i.LON 100 all versions, and i.LON 600 all versions. The devices allow unencrypted Web connections by default, and devices can receive configuration and firmware updates by unsecure FTP.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2018-8855?

It affects 4 products.


Products: Echelon I.lon 100 Firmware, Echelon I.lon 600 Firmware, Echelon Smartserver 1 Firmware, Echelon Smartserver 2 Firmware.

## How do I fix CVE-2018-8855?

No fix has been published for CVE-2018-8855 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8855 being exploited?

There is no known exploitation of CVE-2018-8855 in the wild and no public exploit code.

## Other vulnerabilities in Echelon SmartServer 1

- [CVE-2018-10627](https://insights.sbomify.com/CVE-2018-10627/): Information disclosure in SmartServer 1 (critical 9.8)
- [CVE-2018-8851](https://insights.sbomify.com/CVE-2018-8851/): Hardcoded credentials in SmartServer 1 (critical 9.8)
- [CVE-2018-8859](https://insights.sbomify.com/CVE-2018-8859/): Auth bypass in SmartServer 1 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8855 and fix it if it is affected.

What it is: CVE-2018-8855 is a critical vulnerability in Echelon SmartServer 1, published on 24 Jul 2018. 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-2018-8855 in the wild and no public exploit code.

Affected product: Echelon SmartServer 1. 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-2018-8855/ (Markdown: https://insights.sbomify.com/CVE-2018-8855/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8855
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8855
- OSV: https://osv.dev/vulnerability/CVE-2018-8855

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8855/
Summaries are generated and may contain mistakes; the official description above is the record.