Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
- Severity
- Critical9.8CVSS 3.1, Critical
- EPSS
- 94%
- Published
- 14 Jan 2025
- Updated
- 5 Aug 2026
Description
Title, description and vendor guidance are quoted from the source records.
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.
Weakness: CWE-288
Known exploited
Added to CISA KEV on 14 Jan 2025
Federal remediation due date: 21 Jan 2025
Known use in ransomware campaigns
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Exploit prediction
94% probability of exploitation in the next 30 days (percentile 100%).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What the source states, per branch
Versions matched by Patcharo
Fortinet FortiOSSource: Fortinet (CVE record)
| Branch | Affected | Fixed in |
|---|---|---|
| 7.0 | 7.0.0 – 7.0.16 | Fixed after 7.0.16 |
Versions not listed are stated unaffected by the vendor.
Fortinet FortiProxySource: Fortinet (CVE record)
| Branch | Affected | Fixed in |
|---|---|---|
| 7.2 | 7.2.0 – 7.2.12 | Fixed after 7.2.12 |
| 7.0 | 7.0.0 – 7.0.19 | Fixed after 7.0.19 |
Versions not listed are stated unaffected by the vendor.
Workaround / Vendor remediation
Vendor remediation · FortiOS
Upgrade to FortiOS version 7.0.17 or above Upgrade to FortiProxy version 7.2.13 or above Upgrade to FortiProxy version 7.0.20 or above
Vendor remediation · FortiProxy
Upgrade to FortiOS version 7.0.17 or above Upgrade to FortiProxy version 7.2.13 or above Upgrade to FortiProxy version 7.0.20 or above
References
Provenance
Every fact on this page comes from the sources below. Nothing is written by an AI.
- Fortinet (CVE record)
- Fortinet (CVE record) · 27 Sept 2026, 23:46 UTC · Parser patcharo-cve5/1.1.0
- CISA Known Exploited Vulnerabilities
- CISA Known Exploited Vulnerabilities · 27 Sept 2026, 23:42 UTC · Parser patcharo-kev/1.0.0
- NVD
- NVD · 27 Sept 2026, 23:44 UTC · Parser patcharo-nvd/1.0.0
- FIRST EPSS
- FIRST EPSS · 27 Sept 2026, 23:46 UTC · Parser patcharo-epss/1.0.0
Last verified: 28 Sept 2026, 02:31 UTC