Skip to content
Fencer Intel
high 7.5

CVE-2021-22974 json

On BIG-IP version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, and 13.1.x before 13.1.3.6 and all versions of BIG-…

published 5y ago modified 4mo ago also EUVD-2021-10092

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

On BIG-IP version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, and 13.1.x before 13.1.3.6 and all versions of BIG-IQ 7.x and 6.x, an authenticated attacker with access to iControl REST over the control plane may be able to take advantage of a race condition to execute commands with an elevated privilege level. This vulnerability is due to an incomplete fix for CVE-2017-6167. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Patch / fix

  • f5 big-ip_access_policy_manager 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_advanced_firewall_manager 13.1.3.5, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_advanced_web_application_firewall 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_analytics 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_application_acceleration_manager 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_application_security_manager 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_ddos_hybrid_defender 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_domain_name_system 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_fraud_protection_service 13.1.3.5, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_global_traffic_manager 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_link_controller 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_local_traffic_manager 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_policy_enforcement_manager 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
  • f5 big-ip_ssl_orchestrator 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1

Is CVE-2021-22974 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • n/a BIG-IP, BIG-IQ

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.