FG-IR-25-653: Multiple Unchecked Return Value leading to Null Pointer Dereference

Published Oct 14, 2025
·
Updated

An Unchecked Return Value vulnerability [CWE-252] in FortiOS API may allow an authenticated user to cause a Null Pointer Dereference, crashing the http daemon via a specialy crafted request.

Affected Software

5 affected componentsFixes available
Fortinet FortiOS>=7.6.0<=7.6.3
Fortinet FortiOS>=7.4.0<=7.4.8
Fortinet FortiOS>=7.2
Fortinet FortiOS>=7.0
Fortinet FortiOS>=6.4

Event History

Oct 14, 2025
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-25-653?

The FG-IR-25-653 vulnerability is classified with a medium severity level due to its potential to crash the http daemon.

2

How do I fix FG-IR-25-653?

To fix FG-IR-25-653, you should upgrade FortiOS to version 7.6.4 or higher, or 7.4.9 or higher.

3

Who is affected by the FG-IR-25-653 vulnerability?

The FG-IR-25-653 vulnerability affects authenticated users of FortiOS versions 7.6.3 and lower, 7.4.8 and lower, as well as earlier versions 7.2, 7.0, and 6.4.

4

What type of vulnerability is FG-IR-25-653?

FG-IR-25-653 is an Unchecked Return Value vulnerability, categorized under CWE-252.

5

What impact does FG-IR-25-653 have on users?

FG-IR-25-653 may allow an authenticated user to cause a Null Pointer Dereference, resulting in a denial of service by crashing the http daemon.

Contact

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