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CVE-2019-5591: Fortinet FortiOS Default Configuration Vulnerability
Fortinet FortiOS · in CISA KEV since 2021-11-03
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2021-11-03added to KEV
2022-05-03federal remediation due date
18.42%EPSS exploit probability (30 days) 97.2th percentile
6.5 MEDIUMCVSS 3.1
Knownknown ransomware use
446days from NVD publication to KEV
What it is
Fortinet FortiOS contains a default configuration vulnerability that may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the Lightweight Directory Access Protocol (LDAP) server.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-306 |
|---|---|
| CVSS vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD published | 2020-08-14 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2019-5591.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.