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Fencer Vulns
critical 9.1

CVE-2021-22989 json

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, an…

published 2021-03-31 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10107

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.8%
EPSS 8.8% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, when running in Appliance mode with Advanced WAF or BIG-IP ASM provisioned, the TMUI, also referred to as the Configuration utility, has an authenticated remote command execution vulnerability in undisclosed pages. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Patch / fix

  • f5 big-ip_access_policy_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_advanced_firewall_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_advanced_web_application_firewall 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_analytics 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_application_acceleration_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_application_security_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_ddos_hybrid_defender 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_domain_name_system 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_fraud_protection_service 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_global_traffic_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_link_controller 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_local_traffic_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 big-ip_policy_enforcement_manager 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1
  • f5 ssl_orchestrator 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1

Exploit prediction

8.82% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

  • n/a BIG-IP Advanced WAF or BIG-IP ASM in Appliance Mode

References

Sources

Fencer Vulns 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.