FortiOS

CVE-2018-13374: FortiOS and FortiADC Improper Access Control

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.

Published

ExploitedYes, in CISA KEVAdded 8 Sept 2022
Ransomware useKnownPer CISA
SeverityMEDIUMCVSS 3.1 4.3
EPSS38%Chance of exploitation in 30 days
Public exploitNot tracked
FixNot yet

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
Fortinet FortiOS, fortiADC FortiOS 6.0See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

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.

Exploitation

CISA lists this CVE as exploited in the wild since 8 Sept 2022, including in ransomware campaigns.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.

Get alerts

A notification when we publish a new analysis or a covered vendor gets a new actively exploited CVE. No account, no email.