CRITICALCVSS v3.1 9.8Actively exploited · CISA KEV since 2021-11-03Vulnerability

CVE-2018-13379

Fortinet FortiOS SSL VPN web portal contains a path traversal vulnerability that may allow an unauthenticated attacker to download FortiOS system files through specially crafted HTTP resource requests.

Properties

Euvd product
Fortinet FortiOS, FortiProxy
Vulnerability name
Fortinet FortiOS SSL VPN Path Traversal Vulnerability
First seen
2025-10-21T23:45:35+00:00
Cvss score
9.8
Epss score
0.99999
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-05-03
Euvd assigner
fortinet
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-11-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-11-03
Score
9.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Fortinet
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
9.1

Related Entities (6)

AFFECTS_PRODUCT (3)

→[Product]cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:fortinet:fortiproxy:2.0.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Fortinet FortiOS SSL VPN Path Traversal Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

INVOLVES (1)

←[Signal]kev_added · 2021-11-03

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CVE-2018-13379 (CVSS v3.1 9.8) — Ninja Signal Threat Intelligence | Ninja Signal