CVE-2024-26009: Weak authentication - FGFM protocol

Published Aug 12, 2025
·
Updated

An authentication bypass using an alternate path or channel [CWE-288] vulnerability in Fortinet FortiOS 6.4.0 through 6.4.15, FortiOS 6.2.0 through 6.2.16, FortiOS 6.0 all versions, FortiPAM 1.2.0, FortiPAM 1.1.0 through 1.1.2, FortiPAM 1.0.0 through 1.0.3, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7.2.8, FortiProxy 7.0.0 through 7.0.15, FortiSwitchManager 7.2.0 through 7.2.3, FortiSwitchManager 7.0.0 through 7.0.3 allows an unauthenticated attacker to seize control of a managed device via crafted FGFM requests, if the device is managed by a FortiManager, and if the attacker knows that FortiManager's serial number.

Other sources

An authentication bypass using an alternate path or channel [CWE-288] vulnerability in FortiOS, FortiProxy & FortiPAM may allow an unauthenticated attacker to seize control of a managed device via crafted FGFM requests, if the device is managed by a FortiManager, and if the attacker knows that FortiManager's serial number.

FortiGuard

Affected Software

22 affected componentsFixes available
Fortinet FortiOS>=6.4.0<6.4.15, <6.2.16
Fortinet FortiProxy>=7.4.0<=7.4.2, >=7.2.0<7.2.8, <7.0.15
Fortinet FortiPAM<1.2.0
Fortinet FortiSwitchManager>=7.0.0<7.0.4
Fortinet FortiSwitchManager>=7.2.0<7.2.4
Fortinet FortiProxy>=7.0.0<7.0.16
Fortinet FortiProxy>=7.2.0<7.2.9
Fortinet FortiProxy>=7.4.0<7.4.3
Fortinet FortiPAM>=1.0.0<=1.2.0
Fortinet FortiOS>=6.0.0<6.2.17
Fortinet FortiOS>=6.4.0<6.4.16
Fortinet FortiOS>=6.4.0<=6.4.15
Fortinet FortiOS>=6.2.0<=6.2.16
Fortinet FortiOS>=6.0
Fortinet FortiPAM>=1.2
Fortinet FortiPAM>=1.1
Fortinet FortiPAM>=1.0
Fortinet FortiProxy>=7.4.0<=7.4.2
Fortinet FortiProxy>=7.2.0<=7.2.8
Fortinet FortiProxy>=7.0.0<=7.0.15
Fortinet FortiSwitchManager>=7.2.0<=7.2.3
Fortinet FortiSwitchManager>=7.0.0<=7.0.3

Remediation

Information

Upgrade to FortiSwitchManager version 7.2.4 or above Upgrade to FortiSwitchManager version 7.0.4 or above Upgrade to FortiOS version 6.4.16 or above Upgrade to FortiOS version 6.2.17 or above Upgrade to FortiManager version 7.0.12 or above Upgrade to FortiManager version 6.4.15 or above Upgrade to FortiPAM version 1.3.0 or above Upgrade to FortiProxy version 7.4.3 or above Upgrade to FortiProxy version 7.2.9 or above Upgrade to FortiProxy version 7.0.16 or above

Event History

Aug 12, 2025
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·06:59 PM
Data Sourced
via MITRE·06:59 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:15 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2024-26009?

CVE-2024-26009 has been classified with a critical severity level due to the potential for unauthenticated access.

2

How do I fix CVE-2024-26009?

To mitigate CVE-2024-26009, upgrade FortiOS, FortiProxy, and FortiPAM to their respective patched versions as recommended by Fortinet.

3

What versions are affected by CVE-2024-26009?

CVE-2024-26009 affects FortiOS versions 6.4.0 through 6.4.15 and earlier than 6.2.16, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, and earlier than 7.0.15, and FortiPAM versions before 1.2.0.

4

Who can be impacted by CVE-2024-26009?

Any organization using the affected versions of FortiOS, FortiProxy, or FortiPAM can be impacted by CVE-2024-26009.

5

What type of vulnerability is CVE-2024-26009?

CVE-2024-26009 is classified as an authentication bypass vulnerability, which allows unauthorized access to the affected systems.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203