CVE-2025-25253

High

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

SeverityHigh
CVSS7.5
Exploit probability—
ProductFortinet Fortiproxy
PublishedOct 14, 2025
First seenOct 14, 2025
Weakness typeCWE-297CWE-297

How to fix

Update
  • fortinet fortiproxy7.4.9, 7.6.2 or later
  • fortinet fortios7.4.9, 7.6.3 or later

Affected products

ProductAffected versionsFixed in
fortinet fortiproxy7.0.0 ≤ v < 7.4.9, 7.6.0 ≤ v < 7.6.27.4.9, 7.6.2
fortinet fortios7.0.0 ≤ v < 7.4.9, 7.6.0 ≤ v < 7.6.37.4.9, 7.6.3

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CVE-2025-25253 · Fortinet Fortiproxy · Dark Radar