Improper authentication in Fortinet FortiOS
Priority MEDIUM 41CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
An improper authentication vulnerability [CWE-287] in FortiOS versions 7.4.1 and below, versions 7.2.6 and below, and versions 7.0.12 and below when configured with FortiAuthenticator in HA may allow a readonly user to gain read-write access via successive login attempts.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00638 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fortinet | FortiOS | 7.4.0 – 7.4.1; 7.2.0 – 7.2.6; 7.0.0 – 7.0.12 | — | No fix listed | CNA |
- FortiOS VendorFortinet Affected 7.4.0 – 7.4.1; 7.2.0 – 7.2.6; 7.0.0 – 7.0.12 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | 7.0.0 to before 7.0.13; 7.2.0 to before 7.2.7; 7.4.0 to before 7.4.2 | Vulnerable | Fortinet |
- cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.0.13; 7.2.0 to before 7.2.7; 7.4.0 to before 7.4.2 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-46717
- 2026-10-03 Alias added: GHSA-p8rh-499j-qv73
- 2026-10-24 EPSS moved to the 50th–90th percentile
References
More Fortinet Fortios vulnerabilities
- TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
- TI-2024-36904 Authentication bypass in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
- TI-2024-15234 A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through… KEVCVSS 3.1CRITICAL 9.8
- TI-2024-14448 Out-of-bounds write in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
- TI-2023-12585 Heap-based buffer overflow in Fortinet FortiOS-6K7K KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-46717 · CVE Program
- CVE-2023-46717 · NVD
- FIRST EPSS
- GHSA-p8rh-499j-qv73 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences