CVE-2020-5859: F5 BIG-IP Access Policy Manager

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

On BIG-IP 15.1.0.1, specially formatted HTTP/3 messages may cause TMM to produce a core file.

Affected products

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

Published 2020-03-27. Last modified 2026-06-17.