CVE-2021-22997

7.5 highEPSS 1.1%

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

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-306
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/K34074377
https://support.f5.com/csp/article/K34074377

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