Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2018-13379

CVE-2018-13379CRITICAL

Fortinet FortiOS

  AV  AC  PR  UI  S  C  I  A   CVSS     EPSS    %ile   KEV
   N   L   N   N  U  H  N  H    9.1   1.0000   100.0   YES

AFFECTED
  Product                       Versions                                                                                                                        Fixed
  Fortinet FortiOS, FortiProxy  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 –  —

TIMELINE
  Jul 6   Reserved by fortinet
  Jun 4   Published (CNA: fortinet)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03

CWE-22 · CNA: fortinet · CVSS v3.1 · 3 references · KEV due May 3, 2022

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 6, 2018	Reserved	Reserved by fortinet
June 4, 2019	Published	Published (CNA: fortinet)
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2022-05-03

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Fortinet	Fortinet FortiOS, FortiProxy	—	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	—

Weaknesses

CWE-22

References (3)

https://fortiguard.com/advisory/FG-IR-18-384 [x_refsource_CONFIRM]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-13379 [government-resource]
https://www.fortiguard.com/psirt/FG-IR-20-233 [x_refsource_CONFIRM]

Authoritative record: CVE-2018-13379 at cve.org

Vendors: fortinet

Weaknesses: CWE-22

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-13379 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.