A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0…
Priority MEDIUM 40CWE-134Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- 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-134 and the CVSS impact.
Summary
A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, FortiOS versions 7.4.0, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiPAM versions 1.0.0 through 1.0.3 allows attacker to execute unauthorized code or commands via specially crafted API requests.
Why it matters now
EPSS 0.01059 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fortinet | FortiOS | 7.4.0; 7.2.0 – 7.2.4; 7.0.0 – 7.0.11; 6.4.0 – 6.4.12; 6.2.0 – 6.2.15; 6.0.0 – 6.0.17 | — | No fix listed | CNA |
| Fortinet | FortiPAM | 1.1.0; 1.0.0 – 1.0.3 | — | No fix listed | CNA |
| Fortinet | FortiProxy | 7.2.0 – 7.2.4; 7.0.0 – 7.0.10 | — | No fix listed | CNA |
- FortiOS VendorFortinet Affected 7.4.0; 7.2.0 – 7.2.4; 7.0.0 – 7.0.11; 6.4.0 – 6.4.12; 6.2.0 – 6.2.15; 6.0.0 – 6.0.17 Fixed in — No fix listed CNA
- FortiPAM VendorFortinet Affected 1.1.0; 1.0.0 – 1.0.3 Fixed in — No fix listed CNA
- FortiProxy VendorFortinet Affected 7.2.0 – 7.2.4; 7.0.0 – 7.0.10 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* | 7.0.0 – 7.0.10; 7.2.0 – 7.2.4 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | 6.0.0 – 6.0.17; 6.2.0 – 6.2.15; 6.4.0 – 6.4.12; 7.0.0 – 7.0.11; 7.2.0 – 7.2.4 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:* | 7.4.0 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortipam:*:*:*:*:*:*:*:* | 1.0.0 – 1.0.3 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortipam:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | Fortinet |
- cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* Versions 7.0.0 – 7.0.10; 7.2.0 – 7.2.4 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 6.0.0 – 6.0.17; 6.2.0 – 6.2.15; 6.4.0 – 6.4.12; 7.0.0 – 7.0.11; 7.2.0 – 7.2.4 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:* Versions 7.4.0 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortipam:*:*:*:*:*:*:*:* Versions 1.0.0 – 1.0.3 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortipam:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-36639
- 2026-10-03 Alias added: GHSA-rhfj-295m-9hhj
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-2023-36639 · CVE Program
- CVE-2023-36639 · NVD
- FIRST EPSS
- GHSA-rhfj-295m-9hhj · 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