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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2026-0128
Buffer Overflow Vulnerability in Fortinet FortiManager

Original Issue Date:March 11, 2026

Severity Rating: HIGH

Software Affected

  • FortiManager version 7.4.0 through 7.4.2
  • FortiManager version 7.2.0 through 7.2.10
  • FortiManager version 6.4.0 through 6.4.15

Note: FortiManager Cloud is not affected by this vulnerability.

Overview

A vulnerability has been reported in Fortinet FortiManager, which could allow an unauthenticated remote attacker to execute arbitrary code on the affected system.

Target Audience:
All organizations and administrators using affected Fortinet FortiManager

Risk Assessment:
High risk of execute arbitrary commands on the targeted system.

Impact Assessment:
Potential impact on the system¿s confidentiality, integrity, and availability.

Description

Fortinet develops enterprise security solutions that provide VPN authentication, policy enforcement, and advanced threat detection capabilities.

A vulnerability exists in Fortinet FortiManager due to a stack-based buffer overflow condition. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted requests, if the fgtupdates service is enabled.

Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary code on the affected system. The success of the attack may depend on bypassing stack protection mechanisms implemented in the system.

Solution

Apply appropriate updates as mentioned by the vendor:
https://fortiguard.fortinet.com/psirt/FG-IR-26-098

Vendor Information

Fortinet
https://fortiguard.fortinet.com/psirt/FG-IR-26-098

References

 
https://fortiguard.fortinet.com/psirt/FG-IR-26-098

CVE Name
CVE-2025-54820

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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