CVE-2026-24017: Fortinet FortiWeb

High severity, CVSS 8.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An Improper Control of Interaction Frequency vulnerability [CWE-799] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow a remote unauthenticated attacker to bypass the authentication rate-limit via crafted requests. The success of the attack depends on the attacker's resources and the password target complexity.

Affected products

• Fortinet FortiWeb: from 7.0.0, before 7.0.12 (fixed in 7.0.12); from 7.2.0, before 7.2.12 (fixed in 7.2.12); from 7.4.0, before 7.4.11 (fixed in 7.4.11); from 7.6.0, before 7.6.6 (fixed in 7.6.6); from 8.0.0, before 8.0.3 (fixed in 8.0.3)

Published 2026-03-10. Last modified 2026-06-17.