BaseFortify

Publication date: 2025-11-18

Last updated on: 2025-11-20

Assigner: Fortinet, Inc.

Description

A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-18

Last Modified

2025-11-20

Generated

2026-07-06

AI Q&A

2025-11-18

EPSS Evaluated

2026-07-05

NVD

CVE-2025-46776

Affected Vendors & Products

Vendor	Product	Version / Range
fortinet	fortiextender_firmware	From 7.0.0 (inc) to 7.4.8 (exc)
fortinet	fortiextender_firmware	From 7.6.0 (inc) to 7.6.3 (exc)
fortinet	fortiextender	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a classic buffer overflow in Fortinet FortiExtender versions 7.0 through 7.6.1. It occurs due to a buffer copy operation that does not check the size of the input, allowing an authenticated user to execute arbitrary code or commands by sending specially crafted CLI commands.

Impact Analysis

An attacker who is authenticated can exploit this vulnerability to execute arbitrary code or commands on the affected FortiExtender device. This could lead to unauthorized control over the device, potentially compromising its confidentiality, integrity, and availability.

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