CVE-2018-15318: F5 BIG-IP Access Policy Manager

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

In BIG-IP 14.0.0-14.0.0.2, 13.1.0.4-13.1.1.1, or 12.1.3.4-12.1.3.6, If an MPTCP connection receives an abort signal while the initial flow is not the primary flow, the initial flow will remain after the closing procedure is complete. TMM may restart and produce a core file as a result of this condition.

Affected products

  • F5 BIG-IP Access Policy Manager: from 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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 12.1.3.4, up to and including 12.1.3.6; 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.