CVE-2024-55591

Critical9.8Published on January 14, 2025

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.

Actively exploited

  • In the CISA exploited-vulnerabilities catalogue since Jan 14, 2025
  • US federal agencies must remediate it by Jan 21, 2025 (BOD 22-01)
  • Attacked 1 day before the vulnerability was made public
  • Confirmed by sensors, not only by reports
  • Used in ransomware campaigns

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

Source: CISA KEV · Sep 29, 2026 Sep 22, 2026 Sep 8, 2026 Aug 17, 2026 Aug 11, 2026 Aug 10, 2026

CVSS score9.8 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)CWE-288
Vendorsfortinet

Affected products

VendorsProductVersions
fortinetfortiproxy< 7.0.20
fortinetfortios< 7.0.17

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This product uses the NVD API but is not endorsed or certified by the NVD.

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