All vulnerabilities
CVE-2024-55591

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

Fortinet FortiOS and FortiProxyNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.6Critical
ExploitationExploited in the wildAdded to KEV 14 Jan 2025. Known ransomware useCISA KEV
Exploit odds (EPSS)94.3%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline21 Jan 2025Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 14 Jan 2025Added to CISA KEVCISA KEV
  2. 14 Jan 2025, 14:08 UTCPublishedCVE List

Public exploit code and templates 1

  • Scanner templateFortinet - Authentication BypassNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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.

Text from CVE List

Affected versions 3

  • FortiOSaffected: 7.0.0 through 7.0.16CVE List
  • FortiProxyaffected: 7.2.0 through 7.2.12CVE List
  • FortiProxyaffected: 7.0.0 through 7.0.19CVE List

References 3