CVE-2024-55591 Known ransomware use

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

Fortinet — FortiOS and FortiProxy

Added to KEV catalog: 14 January 2025
Federal remediation due date: 21 January 2025
Weakness classification (CWE): CWE-288

CISA Description

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.

Required action

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

Notes

https://fortiguard.fortinet.com/psirt/FG-IR-24-535 ; https://nvd.nist.gov/vuln/detail/CVE-2024-55591

View on NVD View on MITRE CVE View full CISA catalog

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