# CVE-2024-55591: FortiProxy - RCE

> Live exploitation tracking for CVE-2024-55591 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2024-55591

## Key facts

- **Exploitation phase:** Background Noise. Continuous low-level scanning or exploitation attempts are observed, mostly opportunistic and automated.
- **CVSS score:** 9.6
- **Public exploit available:** Yes
- **Affected products:** Fortinet FortiProxy
- **Weaknesses:** CWE-288 (Authentication Bypass Using an Alternate Path or Channel)
- **Tags:** enterprise_software, firewall

## 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.

## CrowdSec analysis

[CVE-2024-55591](https://euvd.enisa.europa.eu/vulnerability/CVE-2024-55591) is a critical vulnerability affecting certain Fortinet products, allowing remote attackers to bypass authentication and obtain super-admin privileges through specially crafted requests exploiting websocket functionality.

CrowdSec has been tracking this vulnerability and its exploits since 5th of March 2025.

CrowdSec network data shows that most actors exploiting CVE-2024-55591 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature.
Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2024-55591 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2024-55591 is currently experiencing high visibility and active exploitation across the internet.

Observed exploitation attempts are focusing on requests to URLs containing `/login?redir=/ng`.

## Timeline

- 2025-01-14: CVE Published. CVE-2024-55591 is published to NVD.
- 2025-01-14: CISA KEV. CVE-2024-55591 is added to the Known Exploited Vulnerabilities catalog by CISA.
- 2025-01-21: CISA Remediation Deadline. Expiration of the CISA remediation deadline as described in [BOD 22-01](https://www.cisa.gov/news-events/directives/bod-22-01-reducing-significant-risk-known-exploited-vulnerabilities).
- 2025-03-05: Rule Released. CrowdSec releases a rule to detect CVE-2024-55591 exploitation attempts against the CrowdSec Network.
- 2025-03-07: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2024-55591 for the first time.

## References

- https://fortiguard.fortinet.com/psirt/FG-IR-24-535
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-55591.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2024-55591) follows observed exploitation activity for CVE-2024-55591. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.