When using a Quorum device for BIG-IQ high availability (HA) for automatic failover, BIG-IQ does not make use of Transport Layer Security (TLS) with the Corosync protocol. (CVE-2021-23005)
Impact
BIG-IQ
An on-path attacker may be able to read or modify data in transit, which could lead to disruption of services for the HA devices.