Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-25253

Severity CVSS v4.0:
Pending analysis
Type:
CWE-297 Improper Validation of Certificate with Host Mismatch
Publication date:
14/10/2025
Last modified:
15/10/2025

Description

An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions ZTNA proxy may allow an unauthenticated attacker in a man-in-the middle position to intercept and tamper with connections to the ZTNA proxy

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* 7.0.0 (including) 7.4.9 (excluding)
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* 7.6.0 (including) 7.6.2 (excluding)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 7.0.0 (including) 7.4.9 (excluding)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 7.6.0 (including) 7.6.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools