Vulnerability Description
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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortiproxy | >= 7.2.0, < 7.6.5 |
| Fortinet | Fortios | >= 7.2.0, < 7.6.5 |
Related Weaknesses (CWE)
References
- https://fortiguard.fortinet.com/psirt/FG-IR-26-153Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-864900.html
FAQ
What is CVE-2025-62826?
CVE-2025-62826 is a vulnerability with a CVSS score of 3.1 (LOW). 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, FortiO...
How severe is CVE-2025-62826?
CVE-2025-62826 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-62826?
Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortiproxy, Fortinet Fortios.