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Status published
Medium
CVE-2025-55018
An inconsistent interpretation of http requests ('http request smuggling') vulnerability...
Vulnerability 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
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Fortinet
View all reports →Affected Software
FortiOS
Vulnerable Versions:
7.6.0, 7.4.0, 7.2.0, 7.0.0, 6.4.3
Timeline
Official Publish:
February 10th, 2026
Last Modified:
May 12th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:P/RL:O/RC:C