CVE-2017-12736 Missing authorization in RUGGEDCOM M2100

High 8.8 Published 26 Dec 2017 Updated 12 Aug 2025

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

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

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, CWE-1188

Which versions are affected by CVE-2017-12736?

It affects 7 products.

Products include 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 and 1 more.

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.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2017-12736 being exploited?

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

Sources

Also known as GHSA-wjv4-g95p-rg69.