High SEVERITY — Vulnerability

FGFM Authentication Weakening via CLI Configuration

CVSSv3 Score: 7.3 An Authentication Bypass Using an Alternate Path or Channel vulnerability in FortiManager and FortiManager Cloud may allow a remote unauthenticated attacker to impersonate any FortiGate managed by the FortiManager with a specific CLI option set via crafted FGFM requests if the attacker has a valid certificate. Revised on 2026-08-12 00:00:00

Platform
FortiGate / FortiOS
CVSS Score
7.3/10
Advisory
FG-IR-26-160
Published
12 August 2026
Views
44
Primary source: Review the official advisory at fortiguard.fortinet.com Go to Source

Summary

CVSSv3 Score: 7.3 An Authentication Bypass Using an Alternate Path or Channel vulnerability in FortiManager and FortiManager Cloud may allow a remote unauthenticated attacker to impersonate any FortiGate managed by the FortiManager with a specific CLI option set via crafted FGFM requests if the attacker has a valid certificate. Revised on 2026-08-12 00:00:00

Source

FortiGate / FortiOS — Related Advisories

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