CVE-2017-14182: Fortinet FortiOS

Medium severity, CVSS 6.5. EPSS: 1.7% chance of exploitation in the next 30 days.

A Denial of Service (DoS) vulnerability in Fortinet FortiOS 5.4.0 to 5.4.5 allows an authenticated user to cause the web GUI to be temporarily unresponsive, via passing a specially crafted payload to the 'params' parameter of the JSON web API.

Affected products

• Fortinet FortiOS: version 5.4.0 only; version 5.4.1 only; version 5.4.2 only; version 5.4.3 only; version 5.4.4 only; version 5.4.5 only

Published 2017-10-27. Last modified 2026-06-17.