CVE-2025-40761 Auth bypass in RUGGEDCOM ROX MX5000
An attacker with physical access to the serial interface can bypass authentication and gain root shell access on RUGGEDCOM ROX devices.
- 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-2025-40761?
CVE-2025-40761 is a high-severity authentication bypass vulnerability in Siemens RUGGEDCOM ROX MX5000, published on 12 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions), RUGGEDCOM ROX MX5000RE (All versions), RUGGEDCOM ROX RX1400 (All versions), RUGGEDCOM ROX RX1500 (All versions), RUGGEDCOM ROX RX1501 (All versions), RUGGEDCOM ROX RX1510 (All versions), RUGGEDCOM ROX RX1511 (All versions), RUGGEDCOM ROX RX1512 (All versions), RUGGEDCOM ROX RX1524 (All versions), RUGGEDCOM ROX RX1536 (All versions), RUGGEDCOM ROX RX5000 (All versions). Affected devices do not properly limit access through its Built-In-Self-Test (BIST) mode. This could allow an attacker with physical access to the serial interface to bypass authentication and get access to a root shell on the device.
Weakness: CWE-288
Which versions are affected by CVE-2025-40761?
How do I fix CVE-2025-40761?
No fix has been published for CVE-2025-40761 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-40761 being exploited?
There is no known exploitation of CVE-2025-40761 in the wild and no public exploit code.
Sources
Also known as GHSA-7qq7-556j-mg72.