CVE-2026-20916: F5 BIG-IQ Centralized Management

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

An authenticated iControl REST user with low privileges can create or modify arbitrary files through an undisclosed iControl REST endpoint on the BIG-IQ system.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

• F5 BIG-IQ Centralized Management: version 8.4.0 only

Published 2026-05-13. Last modified 2026-06-29.