CVEvulnerability

CVE-2024-55591

9.8 CRITICAL Known exploited Published 2025-01-14 Modified 2026-08-05 Official page ↗

CISA Known Exploited Vulnerability

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability — Fortinet FortiOS and FortiProxy

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.

Added to KEV: 2025-01-14
Remediation due: 2025-01-21
Ransomware use: Known
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

Status: Analyzed
Published: 2025-01-14
Last modified: 2026-08-05
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-288

Description

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 configurations

• fortinet fortiproxy (>= 7.0.0 < 7.0.20) • fortinet fortiproxy (>= 7.2.0 < 7.2.13) • fortinet fortios (>= 7.0.0 < 7.0.17)

Weakness · CWE (1)

CWE-288 Authentication Bypass Using an Alternate Path or Channel weakness

References