CVE-2026-106173

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Path Traversal in Fortinet FortiSIEM

Publication date: 2026-10-13

Last updated on: 2026-10-21

Assigner: Fortinet, Inc.

Description

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiSIEM 7.5.0 may allow attacker to execute unauthorized code or commands via specially crafted packets.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-21

Generated

2026-11-08

AI Q&A

2026-10-13

EPSS Evaluated

2026-11-07

NVD

CVE-2026-106173

EUVD

EUVD-2026-98968

Affected Vendors & Products

Vendor	Product	Version / Range
Fortinet	FortiSIEM	7.5.0
Fortinet	FortiSIEM	7.4.0
Fortinet	FortiSIEM	7.3.0
Fortinet	FortiSIEM	7.2.0
Fortinet	FortiSIEM	7.1.0
Fortinet	FortiSIEM	7.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This is a path traversal vulnerability in Fortinet FortiSIEM 7.5.0. It allows attackers to bypass path restrictions and access unauthorized directories by sending specially crafted packets. This could lead to execution of unauthorized code or commands on the affected system.

Impact Analysis

An attacker could exploit this to gain control over the FortiSIEM system, steal sensitive data, disrupt operations, or use the compromised system as a foothold to move laterally within your network. The high CVSS score indicates severe potential impact.

Compliance Impact

This vulnerability could potentially violate compliance with GDPR and HIPAA by allowing unauthorized access to sensitive data through path traversal. Exploitation may lead to data breaches, compromising confidentiality and integrity of personal or health information.

Mitigation Strategies

Apply the latest security patch from Fortinet immediately to address the path traversal vulnerability in FortiSIEM 7.5.0. Isolate affected systems if possible and monitor network traffic for unusual activity.

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EPSS Chart

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