An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability 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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00038.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Fortinet Subscribe
Fortios Subscribe
Fortiproxy Subscribe

Configuration 1 [-]

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

Configuration 2 [-]

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

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiProxy version 7.6.4 or above Upgrade to FortiProxy version 7.4.12 or above

Workaround

No workaround given by the vendor.

References
Link Providers
https://fortiguard.fortinet.com/psirt/FG-IR-24-372 cve-icon cve-icon
History

Wed, 14 Jan 2026 18:30:00 +0900

Type Values Removed Values Added
Description 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. An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability 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.

Wed, 10 Dec 2025 02:45:00 +0900

Type Values Removed Values Added
Description 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. 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.
CPEs cpe:2.3:a:fortinet:fortiproxy:7.0.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.12:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.13:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.14:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.15:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.16:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.17:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.18:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.19:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.20:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.21:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.22:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.12:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.13:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.14:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.15:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.3:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 3.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C'}

 cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C'}

Fri, 17 Oct 2025 00:00:00 +0900

Type Values Removed Values Added
First Time appeared Fortinet fortiproxy
CPEs cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Vendors & Products Fortinet fortiproxy

Thu, 16 Oct 2025 22:00:00 +0900

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

 cvssV3_1

{'score': 3.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C'}

Wed, 15 Oct 2025 23:15:00 +0900

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 15 Oct 2025 00:45:00 +0900

Type Values Removed Values Added
Description 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.
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-358
CPEs cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-01-14T09:18:28.360Z

Reserved: 2025-02-05T13:31:18.867Z

Link: CVE-2025-25255

cve-icon Vulnrichment

Updated: 2025-10-15T13:14:25.474Z

cve-icon NVD

Status : Modified

Published: 2025-10-14T16:15:37.020

Modified: 2026-01-14T10:16:03.923

Link: CVE-2025-25255

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses