CVE-2019-6647: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 5.3. EPSS: 1.4% chance of exploitation in the next 30 days.

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.2, 12.1.0-12.1.4.1, 11.5.2-11.6.4, when processing authentication attempts for control-plane users MCPD leaks a small amount of memory. Under rare conditions attackers with access to the management interface could eventually deplete memory on the system.

Affected products

  • F5 BIG-IP Access Policy Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Advanced Firewall Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Analytics: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Application Acceleration Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Application Security Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Domain Name System: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Edge Gateway: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Fraud Protection Service: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Global Traffic Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Link Controller: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Local Traffic Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Policy Enforcement Manager: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only
  • F5 BIG-IP Webaccelerator: from 11.5.1, up to and including 11.6.4; from 12.1.0, up to and including 12.1.4; from 13.0.0, up to and including 13.1.1; version 14.0.0 only; version 14.1.0 only

Published 2019-09-04. Last modified 2026-06-17.