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Three Steps to the Terminal: A Siemens ROX II Zero-Day Trilogy
July 17, 2026 · Unit 42 · Severity: CRITICAL
This article provides a technical analysis of three chained zero-day vulnerabilities in Siemens ROX II OT switches, which enable attackers to escalate privileges and gain persistent root access, posing significant risks to operational technology environments.
Key Takeaways
- Three chained zero-days in Siemens ROX II OT switches discovered.
- Vulnerabilities allow privilege escalation and persistent root access.
- Technical analysis details exploitation path to terminal access.