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Actively exploited

Listed in CISA’s Known Exploited Vulnerabilities catalog since November 3, 2021.

Known ransomware use

CVE-2019-5591

Fortinet FortiOS Default Configuration Vulnerability

Fortinet · FortiOS

Added to KEV November 3, 2021

Alert details

Source feed
CISA KEV
CVE ID
CVE-2019-5591
CWE
CWE-306
Affected products
FortiOS · Fortinet FortiOS · Fortinet

What happened

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.

What it means for your business

Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2019-5591). 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. CISA remediation due date: 2022-05-03. If you need help checking exposure, call (864) 335-9223.

Required action

Apply updates per vendor instructions.

CISA due date: May 3, 2022

Sources

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