HTTP response splitting in Fortinet FortiPAM
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4 all versions, FortiProxy 7.2 all versions may allow an attacker able to intercept and modify a user's captive portal authentication request to inject arbitrary headers via crafted HTTP requests.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | FortiPAM | 1.7.0; 1.6.0 – 1.6.2; 1.5.0 – 1.5.1; 1.4.0 – 1.4.3; 1.3.0 – 1.3.1; 1.2.0; 1.1.0 – 1.1.2; 1.0.0 – 1.0.3 | — | No fix listed | CNA |
| Fortinet | FortiProxy | 7.6.0 – 7.6.4; 7.4.0 – 7.4.14; 7.2.0 – 7.2.16; 7.0.0 – 7.0.23 | — | No fix listed | CNA |
| Fortinet | FortiOS | 7.6.0 – 7.6.2; 7.4.0 – 7.4.8; 7.2.0 – 7.2.13; 7.0.0 – 7.0.19; 6.4.0 – 6.4.16 | — | No fix listed | CNA |
- FortiPAM VendorFortinet Affected 1.7.0; 1.6.0 – 1.6.2; 1.5.0 – 1.5.1; 1.4.0 – 1.4.3; 1.3.0 – 1.3.1; 1.2.0; 1.1.0 – 1.1.2; 1.0.0 – 1.0.3 Fixed in — No fix listed CNA
- FortiProxy VendorFortinet Affected 7.6.0 – 7.6.4; 7.4.0 – 7.4.14; 7.2.0 – 7.2.16; 7.0.0 – 7.0.23 Fixed in — No fix listed CNA
- FortiOS VendorFortinet Affected 7.6.0 – 7.6.2; 7.4.0 – 7.4.8; 7.2.0 – 7.2.13; 7.0.0 – 7.0.19; 6.4.0 – 6.4.16 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-62826
- 2026-10-03 Alias added: GHSA-xm2q-h8v9-r8j8
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-2025-62826 · CVE Program
- CVE-2025-62826 · NVD
- FIRST EPSS
- GHSA-xm2q-h8v9-r8j8 · 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