CVE-2019-6636: F5 BIG-IP Advanced Firewall Manager

High severity, CVSS 8.4. EPSS: 0.9% chance of exploitation in the next 30 days.

On BIG-IP (AFM, ASM) 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4, and 11.5.1-11.6.4, a stored cross-site scripting vulnerability in AFM feed list. In the worst case, an attacker can store a CSRF which results in code execution as the admin user. The level of user role which can perform this attack are resource administrator and administrator.

Affected products

• F5 BIG-IP Advanced Firewall Manager: from 12.0.0, before 12.1.4.1 (fixed in 12.1.4.1); from 13.0.0, before 13.1.1.5 (fixed in 13.1.1.5); from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)
• F5 BIG-IP Application Security Manager: from 12.0.0, before 12.1.4.1 (fixed in 12.1.4.1); from 13.0.0, before 13.1.1.5 (fixed in 13.1.1.5); from 14.0.0, before 14.0.0.5 (fixed in 14.0.0.5); from 14.1.0, before 14.1.0.6 (fixed in 14.1.0.6)

Published 2019-07-03. Last modified 2026-06-17.