known ransomware use

Fortinet FortiOS and FortiADC Improper Access Control Vulnerability

Added to KEV
2022-09-08
Federal due date
2022-09-29
Vendor
Fortinet
Product
FortiOS and FortiADC
EPSS
87.6th percentile (score 0.034, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2018-13374

CISA short 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.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.