CVE-2018-13379 | BDVDB-2026-0009 Detail

FortinetFortinet FortiOS, FortiProxy

Description#

An Improper Limitation of a Pathname to a Restricted Directory ("Path Traversal") in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7 and 5.4.6 to 5.4.12 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to download system files via special crafted HTTP resource requests.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

References#

Exploit#

No public exploit known

History#

Version 12019-06-04Record published in the CVE List.
Version 22025-10-21Most recent update recorded in the CVE List.

Published

Published: 2019-06-04
Last modified: 2025-10-21

Vendor information

Vendor: Fortinet
Product: Fortinet FortiOS, FortiProxy

All Fortinet vulnerabilities

Score

9.1 Critical

EPSS

99.9%, Very High

Estimated chance of exploitation in the next 30 days. EPSS percentile: 100.0.

KEV

Yes

Listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Path Traversal

Action

Apply updates per vendor instructions.

Affected Systems

Vulnerable
FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7 and 5.4.6 to 5.4.12, FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.1 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).