FG-IR-25-756: Authenticated Heap Overflow in SSL-VPN bookmarks

Published Oct 14, 2025
·
Updated

An Heap-based Buffer Overflow vulnerability [CWE-122] in FortiOS, FortiPAM and FortiProxy RDP bookmark connection may allow an authenticated user to execute unauthorized code via crafted requests.

Affected Software

15 affected componentsFixes available
Fortinet FortiOS>=7.6.0<=7.6.2
Fortinet FortiOS>=7.4.0<=7.4.7
Fortinet FortiOS>=7.2.0<=7.2.10
Fortinet FortiOS>=7.0
Fortinet FortiOS>=6.4
Fortinet FortiPAM=.
Fortinet FortiPAM>=1.4.0<=1.4.2
Fortinet FortiPAM>=1.3
Fortinet FortiPAM>=1.2
Fortinet FortiPAM>=1.1
Fortinet FortiPAM>=1.0
Fortinet FortiProxy>=7.6.0<=7.6.2
Fortinet FortiProxy>=7.4.0<=7.4.3
Fortinet FortiProxy>=7.2
Fortinet FortiProxy>=7.0

Event History

Oct 14, 2025
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
Mar 3, 2026
Advisory Published
via FortiGuard·11:16 PM

Frequently Asked Questions

1

What is the severity of FG-IR-25-756?

The FG-IR-25-756 vulnerability is classified as a heap-based buffer overflow, which can lead to unauthorized code execution.

2

How do I fix FG-IR-25-756?

To fix FG-IR-25-756, update FortiOS to version 7.6.3 or later, FortiPAM to version 1.5.1 or later, or FortiProxy to version 7.6.3 or later.

3

Which versions are affected by FG-IR-25-756?

FG-IR-25-756 affects specific versions of FortiOS, FortiPAM, and FortiProxy prior to their respective remedial versions.

4

Can FG-IR-25-756 be exploited by unauthenticated users?

No, FG-IR-25-756 requires authentication, meaning only authenticated users can exploit this vulnerability.

5

What type of attack is facilitated by FG-IR-25-756?

FG-IR-25-756 facilitates code execution attacks due to the heap-based buffer overflow vulnerability.

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