VULNERABILITY INTELLIGENCE

CVE-2019-5591

CVSS score6.5 MEDIUM

EPSS probability18.57%

CISA KEVKnown exploited vulnerability

Published2020-08-14

Last modified2026-08-15

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

Known Exploited Vulnerability

Fortinet FortiOS Default Configuration Vulnerability

Vendor / product: Fortinet / FortiOS

Description

A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.

Weakness classification

CWE-306: Missing Authentication for Critical Function

Primary references

psirt@fortinet.com — Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource