CVE-2021-22997: F5 BIG-IQ Centralized Management

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

On all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ HA ElasticSearch service does not implement any form of authentication for the clustering transport services, and all data used by ElasticSearch for transport is unencrypted. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected products

• F5 BIG-IQ Centralized Management: from 6.0.0, before 8.0.0 (fixed in 8.0.0)

Published 2021-03-31. Last modified 2026-06-17.