Severity mappings for AWS GuardDuty

Alert priority state mapping between GuardDuty and Incident Response.

GuardDuty alert priority state mapping

GuardDuty's alert priority is based on the severity field (body.message.detail.severity) in the payload.

GuardDuty payload field GuardDuty payload value Incident Response alert priority value
body.message.detail.severity 0.1 - 3.9 (Low) Warning
4.0 - 6.9 (Medium) Major
7.0 - 8.9 (High) Critical

If body.message.detail.severity property is not sent in payload, then alert priority value set is P5-INFORMATIONAL.