Vulnerability risk level

Score a finding the way CSC does: CVSS for severity, KEV and EPSS for threat, then exposure and the healthcare impact on patients, health data and care services.

Try:
Finding
Severity

CVSS base score (v3.1 or v4.0) from the advisory or scanner.

Threat

Is anyone using it? Check the CISA KEV catalogue, vendor advisory and NCSC-FI alerts.

Exploitation
EPSS probability (next 30 days)
Exposure
Who can reach the vulnerable component?
Healthcare impact
Patient safety
Data at risk
Service criticality
Compensating controls

Remediation SLAs (calendar days)

SeverityExample criteriaMaximum time to remediationScore

Emergency is set by rule, not by score. Guardrails lift a finding to a minimum level whatever the score: active exploitation on an internet-facing system is at least High (Critical when CVSS ≥ 9.0), and active exploitation or CVSS ≥ 7.0 that can directly harm patients is at least Critical or High. CSC sets the final severity and records the reason; exceptions follow the CISO approval path.