CVE-2024-55591

CRITICALCVSS 9.8Known Exploited

CISA Known Exploited Vulnerability

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

Remediation deadline: January 21, 2025

Ransomware use: Known

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.

Timeline

Published:January 14th, 2025 2:15 PM

Last modified:August 5th, 2026 5:16 AM

Added to KEV:January 14th, 2025

CVSS Scoring

CVSS v3: 9.8 (CRITICAL)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Software

From NVD CPE configuration data

Vendors

fortinet

Products

fortiproxyfortios

Weaknesses (CWE)

CWE-288

References & Reports

Advisories, patches, and third-party reports

https://fortiguard.fortinet.com/psirt/FG-IR-24-535Mitigation
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55591US Government Resource

Source: NIST NVD · Data may lag official sources by up to one minute