How severe is CVE-2018-13374?

CVE-2018-13374 has a CVSS 3.1 base score of 4.3 (MEDIUM). EPSS estimates a 37.8% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

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

CISA Known Exploited Vulnerabilities

Fortinet FortiOS and FortiADC Improper Access Control Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-09-08

Remediation due

2022-09-29

Ransomware

Known use

Required action
Apply updates per vendor instructions.

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

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.

Severity

CVSS 3.1 · CNA4.3 MEDIUM

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Fortinet	Fortinet FortiOS, fortiADC	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

References

1 Links

Other references

https://fortiguard.com/advisory/FG-IR-18-157

Record Details

Published

2019-01-22

Last updated

2026-10-01

Assigner (CNA)

fortinet

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.