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Actively exploited

Listed in CISA’s Known Exploited Vulnerabilities catalog since January 14, 2025.

Known ransomware use

CVE-2024-55591

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

Fortinet · FortiOS and FortiProxy

Added to KEV January 14, 2025

Alert details

Source feed
CISA KEV
CVE ID
CVE-2024-55591
CWE
CWE-288
Affected products
FortiOS and FortiProxy · Fortinet FortiOS and FortiProxy · Fortinet

What happened

Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that may allow an unauthenticated, remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.

What it means for your business

Fortinet FortiOS and FortiProxy is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2024-55591). Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that may allow an unauthenticated, remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module. CISA remediation due date: 2025-01-21. If you need help checking exposure, call (864) 335-9223.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date: January 21, 2025

Sources

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