CVE WatchAug 13, 2026

CVE-2018-13374

Fortinet FortiOS and FortiADC Improper Access Control Vulnerability

CVSS

4.3

Medium

EPSS

37.8%

p98

KEV

YES

Sep 8, 2022

Exploit Today

0-100

Published: Jan 22, 2019 · Last modified: Aug 13, 2026 · CWE-732

EPSS · 30d

37.8%EPSS · 30 days38.1%

2026-08-032026-08-31

KEV catalog record

Product

Fortinet / FortiOS and FortiADC

Vulnerability

Fortinet FortiOS and FortiADC Improper Access Control Vulnerability

Added to KEV

Sep 8, 2022

Remediate by

Sep 29, 2022

Known ransomware use

Yes

Summary description

Fortinet FortiOS and FortiADC contain an improper access control vulnerability that allows attackers to obtain the LDAP server login credentials configured in FortiGate by pointing a LDAP server connectivity test request to a rogue LDAP server.

Required action

Apply updates per vendor instructions.

Notes

https://www.fortiguard.com/psirt/FG-IR-18-157; https://nvd.nist.gov/vuln/detail/CVE-2018-13374

Technical description

A Improper Access Control in Fortinet FortiOS 6.0.2, 5.6.7 and before, FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4 allows attacker to obtain the LDAP server login credentials configured in FortiGate via pointing a LDAP server connectivity test request to a rogue LDAP server instead of the configured one.

Official references

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