CVE-2025-55018 MEDIUM

CVE-2025-55018

Vendor Fortinet
Product FortiOS
Weakness CWE-444
Published February 10, 2026
Last update May 12, 2026
View on NVD All CVEs

CVSS base score

5.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

February 10, 2026 CVE published
May 12, 2026 Record updated