CVE-2026-84386 | BDVDB-2026-370384 Detail

FortinetFortiClientWindows

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact high. Attack vector: local.

Weaknesses#

CWE-283 Improper access control

References#

https://fortiguard.fortinet.com/psirt/FG-IR-26-165

Exploit#

No public exploit known

History#

Version 12026-09-08Record published in the CVE List.
Version 22026-10-05Most recent update recorded in the CVE List.

Published

Published: 2026-09-08
Last modified: 2026-10-05

Vendor information

Vendor: Fortinet
Product: FortiClientWindows

All Fortinet vulnerabilities

Score

4.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 3.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 7.4.0 and <= 7.4.7
Fixed
Not stated
Vulnerable
>= 7.2.0 and <= 7.2.15
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.7 Medium

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H/E:P/RL:O/RC:C

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	Low
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).