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

Source: https://junglewise.ai/threats/cve-2018-13374-fortinet-fortios-and-fortiadc-improper-access-control  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-09-08. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2018-13374 · Severity: critical · CVSS 4.3 · Exploited in the wild · Published 2022-09-08

An improper access control vulnerability in Fortinet FortiOS and FortiADC allows an authenticated attacker to obtain configured LDAP server login credentials. This is achieved by redirecting an LDAP server connectivity test request to a rogue LDAP server.

Technologies: [Fortinet FortiADC](https://junglewise.ai/threats/technologies/fortiadc), [Fortinet FortiOS](https://junglewise.ai/threats/technologies/fortios). Vendors: [Fortinet](https://junglewise.ai/threats/vendors/fortinet).

## Quick answers

**Is CVE-2018-13374 exploited in the wild?** Yes. CVE-2018-13374 is known to be exploited in the wild, first recorded on 8 September 2022. Treat it as urgent.

**How severe is CVE-2018-13374?** Critical severity, with a CVSS score of 4.3, published 8 September 2022.

**Which products and versions are affected?** Fortinet FortiOS <= 5.6.7, 6.0.0 to 6.0.2; Fortinet FortiADC 5.4.0 to 5.4.4, 6.0.0 to 6.0.1, 6.1.0.

**Is there a fix for CVE-2018-13374?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2018-13374 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2018-13374?** Check whether you run Fortinet FortiADC or Fortinet FortiOS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Fortinet FortiOS <= 5.6.7, 6.0.0 to 6.0.2
- Fortinet FortiADC 5.4.0 to 5.4.4, 6.0.0 to 6.0.1, 6.1.0

## Timeline

- 2019-01-23: other: Exploit-DB reference added to record
- 2022-09-08: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-09-08: disclosed: NVD publication date

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