# CVE-2022-1666: Secheron SEPCOS Control and Protection Relay

> Attackers can gain root access to Secheron SEPCOS relays by cracking the weak default password using standard tools.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jun 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-3v6j-9mf5-wv3f

## What is CVE-2022-1666?

CVE-2022-1666 is a medium-severity vulnerability in Secheron SEPCOS Control and Protection Relay firmware package, published on 24 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The default password for the web application’s root user (the vendor’s private account) was weak and the MD5 hash was used to crack the password using a widely available open-source tool.

Weakness: CWE-522 (Insufficiently Protected Credentials)

## Which versions are affected by CVE-2022-1666?

It affects 1 product.


Products: Secheron Sepcos Control and Protection Relay Firmware.

## How do I fix CVE-2022-1666?

No fix has been published for CVE-2022-1666 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-1666 being exploited?

There is no known exploitation of CVE-2022-1666 in the wild and no public exploit code.

## Other vulnerabilities in Secheron SEPCOS Control and Protection Relay firmware package

- [CVE-2022-2104](https://insights.sbomify.com/CVE-2022-2104/): Secheron SEPCOS Control and Protection Relay (critical 9.9)
- [CVE-2022-1668](https://insights.sbomify.com/CVE-2022-1668/): Secheron SEPCOS Control and Protection Relay (critical 9.8)
- [CVE-2022-2103](https://insights.sbomify.com/CVE-2022-2103/): Secheron SEPCOS Control and Protection Relay (critical 9.8)
- [CVE-2022-2102](https://insights.sbomify.com/CVE-2022-2102/): Secheron SEPCOS Control and Protection Relay (critical 9.4)
- [CVE-2022-2105](https://insights.sbomify.com/CVE-2022-2105/): Secheron SEPCOS Control and Protection Relay (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-1666 and fix it if it is affected.

What it is: CVE-2022-1666 is a medium-severity vulnerability in Secheron SEPCOS Control and Protection Relay firmware package, published on 24 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-1666 in the wild and no public exploit code.

Affected product: Secheron SEPCOS Control and Protection Relay firmware package. 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-2022-1666/ (Markdown: https://insights.sbomify.com/CVE-2022-1666/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-1666
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-1666
- OSV: https://osv.dev/vulnerability/CVE-2022-1666

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-1666/
Summaries are generated and may contain mistakes; the official description above is the record.