CVE-2025-25255

MediumCVSS 4.3/10Last modified Oct 18, 2026

Description

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

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-358

Affected software

Vendor	Product	Versions
Fortinet	FortiOS	>= 7.6.0, <= 7.6.3
Fortinet	FortiProxy	>= 7.6.0, <= 7.6.3; >= 7.4.0, <= 7.4.11; >= 7.2.0, <= 7.2.15; >= 7.0.1, <= 7.0.22

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-372Vendor Advisory

Timeline

Published: Oct 14, 2025
Last modified: Oct 18, 2026
NVD status: Modified

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