CVE-2019-6638: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 6.5. EPSS: 2% chance of exploitation in the next 30 days.

On BIG-IP 14.1.0-14.1.0.5 and 14.0.0-14.0.0.4, Malformed http requests made to an undisclosed iControl REST endpoint can lead to infinite loop of the restjavad process.

Affected products

  • F5 BIG-IP Access Policy Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Advanced Firewall Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Analytics: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Application Acceleration Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Application Security Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Domain Name System: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Edge Gateway: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Fraud Protection Service: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Global Traffic Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Link Controller: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Local Traffic Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Policy Enforcement Manager: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
  • F5 BIG-IP Webaccelerator: from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)

Published 2019-07-03. Last modified 2026-06-17.