CVE-2017-14187 — A local privilege escalation and local code execution vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8, and 5.2 and below versions allows attacker to execute unauthorized binary program contained on an USB drive plugged into a FortiGate via linking the aforementioned binary program to a command that is allowed to be run by the fnsysctl CLI command

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MEDIUM

A local privilege escalation and local code execution vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8, and 5.2 and below versions allows attacker to execute unauthorized binary program contained on an USB drive plugged into a FortiGate via linking the aforementioned binary program to a command that is allowed to be run by the fnsysctl CLI command

Published May 24, 2018

6.2

MEDIUM

CVSS 3.0

EPSS 0.45%

Description

A local privilege escalation and local code execution vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8, and 5.2 and below versions allows attacker to execute unauthorized binary program contained on an USB drive plugged into a FortiGate via linking the aforementioned binary program to a command that is allowed to be run by the fnsysctl CLI command.

Affected products

Vendor Fortinet, Inc. Product FortiOS Default
n/a
- Version
  5.2 and below versions
  Status
  affected
  Constraints
  -
- Version
  5.4.0 to 5.4.8
  Status
  affected
  Constraints
  -
- Version
  5.6.0 to 5.6.2
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Fortinet, Inc.

FortiOS

n/a

Version	Status	Constraints
5.2 and below versions	affected	-
5.4.0 to 5.4.8	affected	-
5.6.0 to 5.6.2	affected	-

Remediation

No remediation recorded yet.

Metrics

0.45% 0.00446

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.00446

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	0.45% (0.00446)	36.56th	v5 (v2026.06.15)
Sep 20, 2026	0.46% (0.00459)	39.09th	v5 (v2026.06.15)
Jul 20, 2024	0.04% (0.00042)	5.06th	v3 (v2023.03.01)
Mar 27, 2024	0.04% (0.00042)	5.34th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00043)	7.77th	v3 (v2023.03.01)
Mar 6, 2023	1.40% (0.01404)	72.03th	v2 (v2022.01.01)
Feb 4, 2022	1.36% (0.01365)	45.07th	v2 (v2022.01.01)
Feb 3, 2022	0.78% (0.00779)	21.55th	v5 (v2026.06.15)
Apr 14, 2021	0.78% (0.00779)	0.00th	v1

Weaknesses (1)

CWE-269

Improper Privilege Management

References (3)

http://www.securityfocus.com/bid/104312
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040983
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://fortiguard.com/advisory/FG-IR-17-245
x_refsource_CONFIRMMitigationVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/104312		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040983		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://fortiguard.com/advisory/FG-IR-17-245		x_refsource_CONFIRMMitigationVendor Advisory