CVE-2025-55018
Medium
Description
An inconsistent interpretation of http requests ('http request smuggling') vulnerability in Fortinet FortiOS 7.6.0, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4.3 through 6.4.16 may allow an unauthenticated attacker to smuggle an unlogged http request through the firewall policies via a specially crafted header
SeverityMedium
CVSS5.8
Exploit probability—
Product
Fortinet Fortios
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-444CWE-444
How to fix
Update
- fortinet fortios7.4.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortios | 6.4.3 ≤ v ≤ 6.4.16, 7.0.0 ≤ v < 7.4.10, 7.6.0 | 7.4.10 |
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