CVE-2018-15320: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

On BIG-IP 14.0.0-14.0.0.2 or 13.0.0-13.1.1.1, undisclosed traffic patterns may lead to denial of service conditions for the BIG-IP system. The configuration which exposes this condition is the BIG-IP self IP address which is part of a VLAN group and has the Port Lockdown setting configured with anything other than "allow-all".

Affected products

  • F5 BIG-IP Access Policy Manager: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Advanced Firewall Manager: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Analytics: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Application Acceleration Manager: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Domain Name System: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Edge Gateway: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Fraud Protection Service: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Global Traffic Manager: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Link Controller: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Local Traffic Manager: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Policy Enforcement Manager: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Protocol Security Module: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2
  • F5 BIG-IP Webaccelerator: from 13.0.0, up to and including 13.1.1.1; from 14.0.0, up to and including 14.0.0.2

Published 2018-10-31. Last modified 2026-06-17.