CVE-2025-55018
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I. Basic Information for CVE-2025-55018
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fortinet FortiOS 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiOS是美国飞塔（Fortinet）公司的一套专用于FortiGate网络安全平台上的安全操作系统。该系统为用户提供防火墙、防病毒、IPSec/SSLVPN、Web内容过滤和反垃圾邮件等多种安全功能。 Fortinet FortiOS 7.6.0版本、7.4.0版本至7.4.9版本、7.2所有版本、7.0所有版本和6.4.3版本至6.4.16版本存在环境问题漏洞，该漏洞源于HTTP请求解释不一致，可能导致通过特制标头走私未记录的HTTP请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-55018
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Fortinet · 2026-02-10 · 8 CVEs total
| CVE-2025-52436 | 7.9 HIGH | Fortinet FortiSandbox 跨站脚本漏洞 |
| CVE-2026-22153 | 7.5 HIGH | Fortinet FortiOS 安全漏洞 |
| CVE-2026-21743 | 6.8 MEDIUM | Fortinet FortiAuthenticator 安全漏洞 |
| CVE-2025-64157 | 6.7 MEDIUM | Fortinet FortiOS 格式化字符串错误漏洞 |
| CVE-2025-62676 | 6.4 MEDIUM | Fortinet FortiClientWindows 后置链接漏洞 |
| CVE-2025-68686 | 5.3 MEDIUM | Fortinet FortiOS 信息泄露漏洞 |
| CVE-2025-62439 | 3.8 LOW | Fortinet FortiOS 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-444
- CVE-2026-40562
Gazelle versions through 0.49 for Perl allows HTTP Request S - CVE-2026-40561
Starlet versions through 0.31 for Perl allows HTTP Request S - CVE-2026-39805
CL.CL HTTP request smuggling via duplicate Content-Length in - CVE-2026-40560
Starman versions before 0.4018 for Perl allows HTTP Request - CVE-2026-41873
Pony Mail: Admin account takeover via request smuggling
V. Comments for CVE-2025-55018
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