---
id: CVE-2025-53845
title: >-
  An improper authentication vulnerability [CWE-287] in Fortinet FortiAnalyzer
  version 7.6.0 through 7.6.3 and before 7.4.6 allows an unauthenticated
  attacker to obtain information pertaining to the device's health and status,
  or cause a d…
summary: >-
  An improper authentication vulnerability [CWE-287] in Fortinet FortiAnalyzer
  version 7.6.0 through 7.6.3 and before 7.4.6 allows an unauthenticated
  attacker to obtain information pertaining to the device's health and status,
  or cause a d…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'
cwe:
  - CWE-287
vendor: fortinet
product: fortianalyzer
affected:
  - 'fortianalyzer >= 6.4.0, < 7.4.7'
  - 'fortianalyzer >= 7.6.0, < 7.6.4'
patched:
  - fortianalyzer 7.6.4
published: '2025-10-14'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-53845'
references:
  - url: 'https://fortiguard.fortinet.com/psirt/FG-IR-25-378'
    label: psirt@fortinet.com
tags:
  - nvd
epss: 0.00458
epssPercentile: 0.37728
ingestedAt: '2026-10-08T11:31:27.389Z'
---

## Overview

An improper authentication vulnerability [CWE-287] in Fortinet FortiAnalyzer version 7.6.0 through 7.6.3 and before 7.4.6 allows an unauthenticated attacker to obtain information pertaining to the device's health and status, or cause a denial of service via crafted OFTP requests.

## Affected

- `fortianalyzer >= 6.4.0, < 7.4.7`
- `fortianalyzer >= 7.6.0, < 7.6.4`

## Remediation

Upgrade past the affected range:

- `fortianalyzer 7.6.4`