CVE-2020-5878: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

On versions 15.1.0-15.1.0.1, 15.0.0-15.0.1.1, and 14.1.0-14.1.2.3, Traffic Management Microkernel (TMM) may restart on BIG-IP Virtual Edition (VE) while processing unusual IP traffic.

Affected products

  • F5 BIG-IP Access Policy Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Advanced Firewall Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Analytics: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Application Acceleration Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Application Security Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1.; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Domain Name System: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Fraud Protection Service: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Global Traffic Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Link Controller: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Local Traffic Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1
  • F5 BIG-IP Policy Enforcement Manager: from 14.1.0, up to and including 14.1.2.3; from 15.0.0, up to and including 15.0.1.1; from 15.1.0, up to and including 15.1.0.1

Published 2020-04-30. Last modified 2026-06-17.