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CVE-2025-25255

Published: Oct 14, 2025Updated: Jan 14, 2026 Sources: CVE List NVD BDUCWE-358
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.4%
Top 68.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-358

Affected Products

FortiProxyFortinet Inc.Security Products
FortiOSFortinet Inc.Security Products
fortiproxyfortinetSecurity Products
fortiosfortinetSecurity Products
FortiOSFortinetSecurity Products
fortinet inc.commercialUSNetworking Infrastructureaka fortinet
fortinetcommercialUSSecurity Productsaka forti net
and 1 more affected products View all →

Exploitability

Official Patch Available

References

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

Timeline

Published
Oct 14, 2025
Last Updated
Jan 14, 2026

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