What is CVE-2018-9193?

CVE-2018-9193 is a high-severity vulnerability in Fortinet Forticlient. CVSS score: 7.8/10. Published 2019-05-30.

How severe is CVE-2018-9193?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Fortinet Forticlient

CVE-2018-9193

A researcher has disclosed several vulnerabilities against FortiClient for Windows version 6.0.5 and below, version 5.6.6, the combination of these vulnerabilities can turn into an exploit chain, which allows a user to gain system privileges on Microsoft Windows.

Published 2019-05-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.7th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Fortinet Forticlient
Fortinet Forticlientwindows — versions 6.0.0, 5.6.6

References

fortiguard.com/advisory/FG-IR-18-108 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-9193?: CVE-2018-9193 is a high-severity vulnerability in Fortinet Forticlient. CVSS score: 7.8/10. Published 2019-05-30.
How severe is CVE-2018-9193?: High severity. CVSS v3 base score is 7.8 out of 10.