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VulnerabilityKnown exploited · ransomwareExploit likelihood 94%
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
CVE-2024-55591 · CISA KEV · January 14, 2025
Summary
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.
From CISA, quoted as published. Check the source before acting.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA required action, quoted.
Affected products
| Vendor | Product |
|---|---|
| Fortinet | FortiOS and FortiProxy |
Why it's on these mode pages
- Maritime: Vendor table: Fortinet (network and remote-access gear used in every mode, all modes) (matched by rule)
- Pipeline: Vendor table: Fortinet (network and remote-access gear used in every mode, all modes) (matched by rule)
- Freight rail: Vendor table: Fortinet (network and remote-access gear used in every mode, all modes) (matched by rule)
- Passenger rail and transit: Vendor table: Fortinet (network and remote-access gear used in every mode, all modes) (matched by rule)
- Highway and motor carrier: Vendor table: Fortinet (network and remote-access gear used in every mode, all modes) (matched by rule)
- Postal and parcel: Vendor table: Fortinet (network and remote-access gear used in every mode, all modes) (matched by rule)
Change history
- November 9, 2026: First collected by Watch
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