CVE-2023-40720: Fortinet Fortivoice

High severity, CVSS 7.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiVoiceEntreprise version 7.0.0 through 7.0.1 and before 6.4.8 allows an authenticated attacker to read the SIP configuration of other users via crafted HTTP or HTTPS requests.

Affected products

• Fortinet Fortivoice: from 6.0.0, up to and including 6.0.12; from 6.4.0, up to and including 6.4.8; version 7.0.0 only; version 7.0.1 only

Published 2024-05-14. Last modified 2026-06-17.