CVE-2020-5909: F5 Nginx Controller

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

In versions 3.0.0-3.5.0, 2.0.0-2.9.0, and 1.0.1, when users run the command displayed in NGINX Controller user interface (UI) to fetch the agent installer, the server TLS certificate is not verified.

Affected products

• F5 Nginx Controller: from 2.0.0, up to and including 2.9.0; from 3.0.0, up to and including 3.5.0; version 1.0.1 only

Published 2020-07-02. Last modified 2026-06-17.