# CVE-2024-55591: Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

Source: https://junglewise.ai/threats/cve-2024-55591-fortinet-fortios-and-fortiproxy-authentication-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-01-14. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2024-55591 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2025-01-14

An authentication bypass vulnerability in Fortinet FortiOS and FortiProxy allows a remote, unauthenticated attacker to gain super-admin privileges. The flaw exists in the handling of crafted requests to the Node.js websocket module.

Technologies: [Fortinet FortiADC](https://junglewise.ai/threats/technologies/fortiadc), [Fortinet FortiOS](https://junglewise.ai/threats/technologies/fortios), [Fortinet FortiProxy](https://junglewise.ai/threats/technologies/fortiproxy), [Fortinet FortiProxy SSL-VPN](https://junglewise.ai/threats/technologies/fortiproxy-ssl-vpn). Vendors: [Fortinet](https://junglewise.ai/threats/vendors/fortinet).

## Quick answers

**Is CVE-2024-55591 exploited in the wild?** Yes. CVE-2024-55591 is known to be exploited in the wild, first recorded on 14 January 2025. Treat it as urgent.

**How severe is CVE-2024-55591?** Critical severity, with a CVSS score of 9.8, published 14 January 2025.

**Which products and versions are affected?** Fortinet FortiOS 7.0.0 through 7.0.16; Fortinet FortiProxy 7.0.0 through 7.0.19, 7.2.0 through 7.2.12.

**Is there a fix for CVE-2024-55591?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2024-55591 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2024-55591?** Check whether you run Fortinet FortiADC, Fortinet FortiOS, Fortinet FortiProxy or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Fortinet FortiOS 7.0.0 through 7.0.16
- Fortinet FortiProxy 7.0.0 through 7.0.19, 7.2.0 through 7.2.12

## Timeline

- 2025-01-14: disclosed
- 2025-01-14: advisory
- 2025-01-14: kev added: Added to CISA KEV catalog
- 2025-01-14: exploited: Reported as exploited in the wild per CISA KEV entry.

## Related threats

- [Fortinet FortiOS authentication bypass in HA command execution](https://junglewise.ai/threats/cve-2026-126259-a-missing-authentication-for-critical-function-vulnerability-in)
- [Fortinet FortiOS stack buffer overflow in WAD proxy](https://junglewise.ai/threats/cve-2026-126258-a-stack-based-buffer-overflow-vulnerability-in-fortinet-fortios)
- [Fortinet FortiOS out-of-bounds read in kernel](https://junglewise.ai/threats/cve-2026-126256-a-out-of-bounds-read-vulnerability-in-fortinet-fortios-8-0-0)
- [Fortinet FortiOS path traversal authentication bypass in SSH daemon](https://junglewise.ai/threats/cve-2026-126255-a-path-traversal-filedir-vulnerability-in-fortinet-fortios-8-0-0)
- [Fortinet FortiOS numeric truncation error in BGP daemon](https://junglewise.ai/threats/cve-2026-126254-a-numeric-truncation-error-vulnerability-in-fortinet-fortios-8-0)