CVE-2022-40684: Fortinet Multiple Products Authentication Bypass Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2022-10-11. EPSS: 100% chance of exploitation in the next 30 days.

An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and FortiSwitchManager version 7.2.0 and 7.0.0 allows an unauthenticated atttacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.

Affected products

• Fortinet FortiOS: from 7.0.0, before 7.0.7 (fixed in 7.0.7); from 7.2.0, before 7.2.2 (fixed in 7.2.2)
• Fortinet FortiProxy: from 7.0.0, before 7.0.7 (fixed in 7.0.7); version 7.2.0 only
• Fortinet Fortiswitchmanager: version 7.0.0 only; version 7.2.0 only

Published 2022-10-18. Last modified 2026-08-06.