CVE-2021-22996: F5 BIG-IQ Centralized Management

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

On all 7.x versions (fixed in 8.0.0), when set up for auto failover, a BIG-IQ Data Collection Device (DCD) cluster member that receives an undisclosed message may cause the corosync process to abort. This behavior may lead to a denial-of-service (DoS) and impact the stability of a BIG-IQ high availability (HA) cluster. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected products

• F5 BIG-IQ Centralized Management: from 7.0.0, before 8.0.0 (fixed in 8.0.0)

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