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

> CVE-2018-13374: Fortinet FortiOS and FortiADC Improper Access Control Vulnerability. CVSS 4.3 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-13374
Last updated: 2026-10-01T18:32:15Z

- Published: 2019-01-22 14:00 UTC · Updated: 2026-10-01 18:32 UTC · Assigner: fortinet
- CVSS: 4.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS: 38.1%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-09-08, federal due date 2022-09-29, ransomware use: Known

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Fortinet: Fortinet FortiOS, fortiADC

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-13374)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-13374)
- [https://fortiguard.com/advisory/FG-IR-18-157](https://fortiguard.com/advisory/FG-IR-18-157)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-13374 · Markdown: https://rewindex.com/cve/CVE-2018-13374.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-13374 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:58:52.306Z