Is CVE-2017-14186 being actively exploited?

CVE-2017-14186 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2017-14186?

CVE-2017-14186 has a CVSS 3.0 base score of 5.4 (MEDIUM).

CVE-2017-14186

MEDIUM · CVSS 5.4EPSS 3.7%EU EUVD

A Cross-site Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.7, 5.4 and below versions under SSL VPN web portal allows a remote user to inject arbitrary web script or HTML in the context of the victim's browser via the login redir parameter. An URL Redirection attack may also be feasible by injecting an external URL via the affected parameter.

Key facts

CVSS score: 5.4 (v3.0)
Severity: MEDIUM
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
EPSS score: 3.7% (90th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2017-5696)
Published: November 29, 2017
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-5696 in the EU Vulnerability Database. Last updated in EUVD on October 25, 2024.

View on the EU Vulnerability Database

Affected products

fortinet / fortios

Certified products that may be affected

4 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

FortiOS 5.6 - Fortinet, Inc. - FIPS 140 3639 - historical
FortiOS 5.2 - Fortinet, Inc. - FIPS 140 2765 - historical
FortiOS™ - Fortinet, Inc. - FIPS 140 1754 - historical
FortiOS - Fortinet, Inc. - FIPS 140 1431 - historical

References

http://www.securityfocus.com/bid/101955(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1039891(Third Party Advisory, VDB Entry)
https://fortiguard.com/advisory/FG-IR-17-242(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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