CVE-2018-13382

Name: CVE-2018-13382
Creator: NVD / NIST
Published: 2019-06-04T21:29:00.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10Actively ExploitedEPSS 81.69%

Last modified Jun 17, 2026

CVE-2018-13382 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 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 modify the password of an SSL VPN web portal user via specially crafted HTTP requests. CISA has confirmed active exploitation in the wild. EPSS estimates a 81.69% chance of exploitation in the next 30 days.

Description

An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 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 modify the password of an SSL VPN web portal user via specially crafted HTTP requests

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

81.69%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jul 10, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fortinet	Fortiproxy	< 1.2.9
Fortinet	Fortiproxy	2.0.0
Fortinet	Fortios	>= 5.4.1, < 5.4.11
Fortinet	Fortios	>= 5.6.0, < 5.6.9
Fortinet	Fortios	>= 6.0.0, < 6.0.5

References

https://fortiguard.com/advisory/FG-IR-18-389Vendor Advisory
https://www.fortiguard.com/psirt/FG-IR-20-231Vendor Advisory
https://fortiguard.com/advisory/FG-IR-18-389Vendor Advisory
https://www.fortiguard.com/psirt/FG-IR-20-231Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-13382US Government Resource

Timeline

Published: Jun 4, 2019
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2018-13382?

How severe is CVE-2018-13382?

CVE-2018-13382 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 81.69% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2018-13382?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-13382?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST