Is CVE-2017-3133 being actively exploited?

CVE-2017-3133 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2017-3133?

CVE-2017-3133 has a CVSS 3.0 base score of 6.1 (MEDIUM).

CVE-2017-3133

MEDIUM · CVSS 6.1EPSS 10.7%EU EUVD

A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.6.0 and earlier allows attackers to execute unauthorized code or commands via the Replacement Message HTML for SSL-VPN.

Key facts

CVSS score: 6.1 (v3.0)
Severity: MEDIUM
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
EPSS score: 10.7% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2017-12274)
Published: September 12, 2017
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-12274 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/100009(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1039020(Third Party Advisory, VDB Entry)
https://fortiguard.com/advisory/FG-IR-17-104(Vendor Advisory)
https://www.exploit-db.com/exploits/42388/(Exploit, Third Party Advisory, VDB Entry)

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

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