What is CVE-2017-3127?

CVE-2017-3127 is a medium-severity vulnerability in Fortinet Fortios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-06-01.

How severe is CVE-2017-3127?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Fortinet Fortios

CVE-2017-3127

A Cross-Site Scripting vulnerability in Fortinet FortiGate 5.2.0 through 5.2.10 allows attacker to execute unauthorized code or commands via the srcintf parameter during Firewall Policy Creation.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-06-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (60.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Fortinet Fortios — versions 5.2.0, 5.2.1, 5.2.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/98048 (VDB Entry, Third Party Advisory, vdb-entry)
fortiguard.com/psirt/FG-IR-17-017 (Vendor Advisory)
www.securitytracker.com/id/1038367 (vdb-entry)

Frequently asked questions

What is CVE-2017-3127?: CVE-2017-3127 is a medium-severity vulnerability in Fortinet Fortios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-06-01.
How severe is CVE-2017-3127?: Medium severity. CVSS v3 base score is 6.1 out of 10.