CVE-2025-25255

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-25255
An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://fortiguard.fortinet.com/psirt/FG-IR-24-372 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
History

09 Dec 2025, 18:15

Type Values Removed Values Added
Summary (en) An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiProxy 7.6.0 through 7.6.3, 7.4 all versions, 7.2 all versions, 7.0.1 through 7.0.21, and FortiOS 7.6.0 through 7.6.3 explicit web proxy may allow an authenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests. (en) An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.
CVSS v2 : unknown
v3 : 4.3 		v2 : unknown
v3 : 5.3

16 Oct 2025, 14:56

Type Values Removed Values Added
CPE cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
First Time Fortinet
Fortinet fortios
Fortinet fortiproxy
References () https://fortiguard.fortinet.com/psirt/FG-IR-24-372 - () https://fortiguard.fortinet.com/psirt/FG-IR-24-372 - Vendor Advisory

15 Oct 2025, 14:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.3

14 Oct 2025, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-10-14 16:15

Updated : 2025-12-09 18:15

NVD link : CVE-2025-25255

Mitre link : CVE-2025-25255

CVE.ORG link : CVE-2025-25255

JSON object : View

Products Affected

fortinet

  • fortiproxy
  • fortios
CWE
CWE-358

Improperly Implemented Security Check for Standard