FG-IR-26-160: FGFM Authentication Weakening via CLI Configuration

Published Aug 12, 2026
·
Updated

An Authentication Bypass Using an Alternate Path or Channel [CWE-288] 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.

Affected Software

6 affected componentsFixes available
Fortinet FortiManager=.
Fortinet FortiManager>=7.4.3<=7.4.5
Fortinet FortiManager>=7.2.5<=7.2.9
Fortinet FortiManager Cloud=.
Fortinet FortiManager Cloud>=7.4.3<=7.4.5
Fortinet FortiManager Cloud>=7.2.5<=7.2.9

Event History

Aug 12, 2026
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of FG-IR-26-160?

The severity of FG-IR-26-160 is rated as high, with a score of 7.3.

2

How do I fix FG-IR-26-160?

To fix FG-IR-26-160, ensure that your FortiManager and FortiManager Cloud installations are updated to the latest versions provided by Fortinet.

3

What kind of attack does FG-IR-26-160 facilitate?

FG-IR-26-160 facilitates authentication bypass attacks, allowing an unauthenticated attacker to impersonate FortiGate devices.

4

Which products are affected by FG-IR-26-160?

The affected products for FG-IR-26-160 are Fortinet FortiManager and Fortinet FortiManager Cloud.

5

What is the impact of exploiting FG-IR-26-160?

Exploiting FG-IR-26-160 can lead to unauthorized access and control over any FortiGate managed by the compromised FortiManager.

Contact

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