CVE-2025-55018 — MEDIUM (5.8)

Q: How severe is CVE-2025-55018?

CVE-2025-55018 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-55018?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortios.

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

CVSS Score

5.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Fortinet	Fortios	>= 6.4.3, <= 6.4.16

Related Weaknesses (CWE)

CWE-444

References

FAQ

What is CVE-2025-55018?

CVE-2025-55018 is a vulnerability with a CVSS score of 5.8 (MEDIUM). 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, For...

How severe is CVE-2025-55018?

CVE-2025-55018 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-55018?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortios.