CVE-2020-27714: F5 BIG-IP Advanced Firewall Manager

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

On the BIG-IP AFM version 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when a Protocol Inspection Profile is attached to a FastL4 virtual server with the protocol field configured to either Other or All Protocols, the TMM may experience a restart if the profile processes non-TCP traffic.

Affected products

• F5 BIG-IP Advanced Firewall Manager: from 13.1.0, up to and including 13.1.3; from 14.1.0, before 14.1.3.1 (fixed in 14.1.3.1); from 15.0.0, before 15.1.1 (fixed in 15.1.1)

Published 2020-12-24. Last modified 2026-06-17.