CVE-2020-27728: F5 BIG-IP Advanced Web Application Firewall

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

On BIG-IP ASM & Advanced WAF versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, and 14.1.0-14.1.3, under certain conditions, Analytics, Visibility, and Reporting daemon (AVRD) may generate a core file and restart on the BIG-IP system when processing requests sent from mobile devices.

Affected products

• F5 BIG-IP Advanced Web Application Firewall: 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); from 16.0.0, before 16.0.1 (fixed in 16.0.1)
• F5 BIG-IP Application Security Manager: 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); from 16.0.0, before 16.0.1 (fixed in 16.0.1)

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