Auth bypass in F5 Big-Iq Centralized Management

CVE-2021-22995

On all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ high availability (HA) when using a Quorum device for automatic failover does not implement any form of authentication with the Corosync daemon. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-22995: held from 0.009 to 0.009.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-22995?
CVE-2021-22995 is a high-severity vulnerability in F5 Big-Iq Centralized Management, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2021-03-31.
How severe is CVE-2021-22995?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-22995 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.