CVE-2021-24008: Fortinet Fortiddos

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

An exposure of sensitive system information to an unauthorized control sphere vulnerability [CWE-497] in FortiDDoS version 5.4.0, version 5.3.2 and below, version 5.2.0, version 5.1.0, version 5.0.0, version 4.7.0, version 4.6.0, version 4.5.0, version 4.4.2 and below, FortiDDoS-CM version 5.3.0, version 5.2.0, version 5.1.0, version 5.0.0, version 4.7.0, FortiVoice version 6.0.6 and below, FortiRecorder version 6.0.3 and below and FortiMail version 6.4.1 and below, version 6.2.4 and below, version 6.0.9 and below may allow a remote, unauthenticated attacker to obtain potentially sensitive software-version information by reading a JavaScript file.

Affected products

• Fortinet Fortiddos: from 4.4.0, before 5.4.3 (fixed in 5.4.3)
• Fortinet Fortiddos-Cm: version 4.7.0 only; version 5.0.0 only; version 5.1.0 only; version 5.2.0 only; version 5.3.0 only
• Fortinet FortiMail: from 6.0.0, before 6.0.10 (fixed in 6.0.10); from 6.2.0, before 6.2.5 (fixed in 6.2.5); from 6.4.0, before 6.4.2 (fixed in 6.4.2)
• Fortinet Fortirecorder: from 6.0.0, before 6.0.4 (fixed in 6.0.4)
• Fortinet Fortivoice: from 6.0.0, before 6.0.7 (fixed in 6.0.7)

Published 2025-03-28. Last modified 2026-06-17.