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