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OT vulnerability prioritization
Most OT vulnerabilities stay open for months because a patch needs an outage window the plant cannot give. You rank them by what an attacker could reach and what would stop production, then use compensating controls until the window opens.
These posts cover the RISE model, CVSS rescoring for OT, and when patching is the wrong first move.
Field notes (6)
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· Roger Hill
When Patching Won’t Protect Your Factory
Why patch metrics miss most OT outages: in most disruptions Hillstrong reviewed, an operational failure caused the outage. Map dependencies instead.
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· Roger Hill
How to Build a Sustainable OT Vulnerability Management Program
A lasting OT vulnerability management program needs an OT-specific RACI, central governance with site flexibility, tracked exceptions, and a steady cadence.
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· Hillstrong Group Security
Mapping OT Business Risk Using the QUICK Framework
The QUICK framework scores OT assets on Quality, Uptime, Information Integrity, Compliance, and Key Deliverables to rank vulnerabilities by business impact.
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· Roger Hill
The RISE Model: Prioritizing OT Vulnerabilities Where It Matters Most
The RISE model (Risk, Impact, Scoring Improvement, Effort) ranks OT vulnerabilities when CVSS misleads. A five-device example shows how the order changes.
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· Roger Hill
How to Recalculate CVSS Scores in an OT Context
Raw CVSS base scores mislead in OT. Recalibrate them in five steps using asset role, network context, compensating controls, and business process impact.
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· Roger Hill
Why Patching is Not a Panacea in OT Security
IT-style patching fails in OT. See how a pharma plant secured an FDA-validated system without a patch, and three metrics that beat patch compliance.
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