Security · Flashcard

What does an EPSS score estimate?

  • AThe probability that a vulnerability will be exploited in the wild in the near term
  • BThe proportion of an organisation's assets that run the affected component version
  • CThe severity of the impact should an attacker successfully exploit the vulnerability
  • DThe time a typical engineering team needs to remediate the vulnerability fully

Why this is the answer

EPSS is a predictive probability between 0 and 1 that exploitation will be observed within a short forward window, built from observed attack data. Asset coverage is inventory, impact is what CVSS scores, and remediation effort is not something EPSS models — conflating probability with severity is the usual mistake.

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