CVE-2024-55591 — Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

CVE-2024-55591

CRITICAL · CVSS 9.8 ⚠ KEV — EXPLOITED

EPSS exploitation probability: 100%

⚠ Listed in the CISA Known Exploited Vulnerabilities catalog — actively exploited.

Published 2025-01-14 · Last modified 2026-07-08T14:16:53.953

Summary

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.

Affected products

Fortinet — FortiOS and FortiProxy

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References

NVD entry
CVE.org record

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.