TI-2018-06674 Aliases CVE-2018-9191 GHSA-3c4j-chc9-8m6m

A local privilege escalation in Fortinet FortiClient for Windows 6.0.4 and earlier allows…

LOW 36Published 2019-05-30 · Updated 2024-10-25

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

A local privilege escalation in Fortinet FortiClient for Windows 6.0.4 and earlier allows attackers to execute unauthorized code or commands via the named pipe responsible for Forticlient updates.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00337 27th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Fortinet	Fortinet FortiClient for Windows	up to 6.0.4	—	No fix listed	CNA

Fortinet FortiClient for Windows VendorFortinet Affected up to 6.0.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:fortinet:forticlient::::::windows::*	up to 6.0.4	Vulnerable	Fortinet

cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:* Versions up to 6.0.4 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-9191
2026-10-03 Alias added: GHSA-3c4j-chc9-8m6m

References

Advisory 1

https://fortiguard.com/advisory/FG-IR-18-108

TI-2019-13180 An unquoted service path vulnerability in the FortiClient FortiTray component of… CVSS 3.1CRITICAL 9.8
TI-2023-24393 Code injection in Fortinet FortiClientLinux CVSS 3.1CRITICAL 9.4
TI-2017-10335 Information disclosure in Fortinet FortiClient for Windows CVSS 3.0HIGH 8.8
TI-2016-06998 In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability. CVSS 3.0HIGH 8.8
TI-2019-03954 Untrusted search path in Fortinet FortiClientWindows CVSS 3.1HIGH 8.6
TI-2017-05007 A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0… CVSS 3.0HIGH 8.1

See all 85 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences