CVE-2018-13383

4.3 MEDIUM CISA KEV - Actively Exploited
Published: May 29, 2019 Modified: October 24, 2025
View on NVD

Description

A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://fortiguard.com/advisory/FG-IR-18-388
Source: psirt@fortinet.com
Mitigation Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-229
Source: psirt@fortinet.com
Vendor Advisory
https://fortiguard.com/advisory/FG-IR-18-388
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-229
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-13383
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
4.3 / 10.0
EPSS (Exploit Probability)
1.3%
79th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-07-10

Weaknesses (CWE)

CWE-787 CWE-787

Affected Vendors

fortinet

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