CVE-2025-40761: Siemens RUGGEDCOM ROX MX5000 · Authentication Bypass Using an Alternate Path or Channel
Affects Siemens RUGGEDCOM ROX MX5000Source CVE Database V5
Not known to be exploited · CVSS 7.6 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Siemens RUGGEDCOM ROX MX5000 | Affected
| Fixed in– |
AI-suggested
- Enforce strict physical security controls around all Siemens RUGGEDCOM devices, including locked cabinets, restricted access zones, and surveillance to prevent unauthorized physical access to serial interfaces.
- Implement tamper-evident seals and monitoring on device enclosures to detect unauthorized access attempts.
- Where possible, disable or restrict access to the Built-In-Self-Test (BIST) mode or configure devices to require authentication even in BIST mode, if supported by firmware updates or configuration options.
- Monitor device logs and network traffic for unusual activity that could indicate exploitation attempts or unauthorized access.
- Segregate critical RUGGEDCOM devices on isolated network segments with strict access controls to limit lateral movement if a device is compromised.
- Engage with Siemens for firmware updates or patches addressing this vulnerability and plan for timely deployment once available.
- Conduct regular security audits and penetration tests focusing on physical security and device access controls in operational environments.
- Train personnel on the risks of physical access attacks and enforce policies limiting access to authorized staff only.
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.