CVE-2019-5591CISA KEVEPSS p96.9%

CVE-2019-5591Fortinet FortiOS Default Configuration Vulnerability

Fortinet / FortiOS

Description

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.

Scoring

EPSS18.57% probability of exploitation · percentile 96.9% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2021-11-03

(incoming)1

TypeTargetConfidenceTier
KEVEntryFortinet FortiOS Default Configuration Vulnerabilitykev-cve-2019-55910%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Fortinet FortiOS and FortiADC Improper Access Control Vulnerability
CVE
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
CVE
Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability
CVE
CVE-2026-22153
CVE
Fortinet FortiOS and FortiProxy Improper Authorization
CVE
CVE-2022-40684
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.