CVE-2026-84386: Fortinet Forticlientwindows

Medium severity, CVSS 5.1. EPSS: 0.1% chance of exploitation in the next 30 days.

A unverified ownership vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.7, FortiClientWindows 7.2 all versions may allow attacker to improper access control via via an exposed minifilter communication port.

Affected products

• Fortinet Forticlientwindows: from 7.4.0, up to and including 7.4.7; from 7.2.0, up to and including 7.2.15

Published 2026-09-08. Last modified 2026-10-02.