# CVE-2017-12736: Missing authorization in RUGGEDCOM M2100

> An attacker on the adjacent network can perform unauthorized administrative actions on Ruggedcom devices due to improper initial configuration handling.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Dec 2017
- **Updated:** 12 Aug 2025
- **Also known as:** GHSA-wjv4-g95p-rg69

## What is CVE-2017-12736?

CVE-2017-12736 is a high-severity missing authorization vulnerability in Siemens RUGGEDCOM M2100, published on 26 Dec 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

After initial configuration, the Ruggedcom Discovery Protocol (RCDP) is still able to write to the device under certain conditions.

This could allow an attacker located in the adjacent network of the targeted device to perform unauthorized administrative actions.

Weakness: CWE-665 (Improper Initialization), CWE-1188 (Initialization of a Resource with an Insecure Default)

## Which versions are affected by CVE-2017-12736?

It affects 7 products.


Products: Siemens Ruggedcom Ros, Siemens Scalance Xb-200 Firmware, Siemens Scalance Xc-200 Firmware, Siemens Scalance Xm-400 Firmware, Siemens Scalance Xp-200 Firmware, Siemens Scalance Xr-500 Firmware, Siemens Scalance Xr300-Wg Firmware.

## How do I fix CVE-2017-12736?

No fix has been published for CVE-2017-12736 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-12736 being exploited?

There is no known exploitation of CVE-2017-12736 in the wild and no public exploit code.

## Other vulnerabilities in Siemens RUGGEDCOM M2100

- [CVE-2021-37208](https://insights.sbomify.com/CVE-2021-37208/): Cross-site scripting in RUGGEDCOM M2100 (critical 9.6)
- [CVE-2023-24845](https://insights.sbomify.com/CVE-2023-24845/): Other in RUGGEDCOM M2100 (critical 9.1)
- [CVE-2022-34663](https://insights.sbomify.com/CVE-2022-34663/): Code injection in RUGGEDCOM M2100 (high 8.0)
- [CVE-2023-39269](https://insights.sbomify.com/CVE-2023-39269/): Denial of service in RUGGEDCOM M2100 (high 7.5)
- [CVE-2021-42016](https://insights.sbomify.com/CVE-2021-42016/): Information disclosure in RUGGEDCOM M2100 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-12736 and fix it if it is affected.

What it is: CVE-2017-12736 is a high-severity missing authorization vulnerability in Siemens RUGGEDCOM M2100, published on 26 Dec 2017. 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-2017-12736 in the wild and no public exploit code.

Affected product: Siemens RUGGEDCOM M2100. 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-2017-12736/ (Markdown: https://insights.sbomify.com/CVE-2017-12736/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-12736
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-12736
- OSV: https://osv.dev/vulnerability/CVE-2017-12736

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-12736/
Summaries are generated and may contain mistakes; the official description above is the record.