CVE-2018-13379: listed in the CISA KEV catalog

CVE-2018-13379 · CVSS 9.1 CRITICAL · EPSS 100.0% · KEV 2021-11-03

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.

Is CVE-2018-13379 exploited?

• Listed in the CISA KEV catalog on 2021-11-03.
• Federal remediation due 2022-05-03.
• Past that date by 1565 days.
• Used in ransomware campaigns.
• EPSS puts exploitation in the next 30 days at 100.0%.
• Public exploit code: proof of concept.
• Public detection rules exist.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2018-13379

• Patched FortiGates Still Leak Access Through Old Credentials (2026-07-09)

Primary sources

• NVD record
• CISA KEV catalog
• Exploit-DB 47288
• Exploit-DB 47287
• Nuclei template

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.