CVE-2021-22996

7.5 highEPSS 1.0%

High (7.5) in f5 big-iq centralized management. EPSS 1.0% 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
Published: 2021-03-31
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

f5:big-iq_centralized_management

References

https://support.f5.com/csp/article/K16352404
https://support.f5.com/csp/article/K16352404

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