ZDI-26-186: Fortinet FortiClient Link Following Local Privilege Escalation Vulnerability

Published Mar 10, 2026
·
Updated

This vulnerability allows local attackers to escalate privileges on affected installations of Fortinet FortiClient. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-24018.

Affected Software

1 affected component
Fortinet FortiClient

Event History

Mar 10, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description

Frequently Asked Questions

1

What is the severity of ZDI-26-186?

The severity of ZDI-26-186 is considered high due to its potential for privilege escalation.

2

How do I fix ZDI-26-186?

To fix ZDI-26-186, you should update Fortinet FortiClient to the latest patched version provided by Fortinet.

3

What is affected by ZDI-26-186?

ZDI-26-186 affects installations of Fortinet FortiClient where attackers can exploit the vulnerability for local privilege escalation.

4

Who can exploit ZDI-26-186?

ZDI-26-186 can be exploited by local attackers who have the ability to execute low-privileged code on the target system.

5

What type of vulnerability is ZDI-26-186?

ZDI-26-186 is a local privilege escalation vulnerability that allows attackers to gain elevated permissions on the affected system.

Contact

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Fortitude Valley,
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info@secalerts.co
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