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Vulnerability Assessment in Safety-Critical Environments

Identifying vulnerabilities in rail OT is essential, but traditional vulnerability assessment approaches often conflict with safety, availability, and certification requirements. Rail operators need a way to understand exposure and risk without scanning systems or disrupting operations.

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Challenges

The Main Challenges in Performing Vulnerability Assessment

Conventional vulnerability scanning is not rail-safe

Active scanning can interfere with legacy protocols, or certified systems (like ATP).

Vulnerability data lacks operational relevance

Generic CVE lists do not reflect how rail systems are actually deployed or how vulnerabilities might impact safety or service continuity.

Risk prioritization is difficult without context

Teams struggle to determine which vulnerabilities matter most when they cannot see how exposed assets interact or whether compensating controls exist.

OUR Solutions

How CylusOne Enables Rail-Safe Vulnerability Assessment

Non-Intrusive Correlation of Vulnerabilities to Assets

CylusOne supports vulnerability assessment by correlating known vulnerabilities with observed assets, configurations, and communication patterns, without touching the systems themselves.

Operational Context for Vulnerability Exposure

CylusOne asset’s inventory precision adds operational context to vulnerability data. This helps teams understand where vulnerable components sit within the rail environment and how they relate to safety-critical workflows. Combined with the network topology, this information supports prioritization of vulnerability management, as it becomes clear whether a vulnerable device could perform lateral movement to a more sensitive system, for example.

Risk-Based Prioritization of Vulnerability Remediation

CylusOne helps teams prioritize remediation by focusing attention on vulnerabilities that intersect with exposed interfaces, critical communications, or operational dependencies—supporting informed decision-making without introducing operational risk.

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