---
id: CVE-2025-43892
title: >-
  A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3,
  FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all
  versions, FortiOS 6.4 all versions may allow an authenticated remote attacker
  to return a po…
summary: >-
  A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3,
  FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all
  versions, FortiOS 6.4 all versions may allow an authenticated remote attacker
  to return a po…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-126
vendor: fortinet
product: fortiproxy
affected:
  - 'fortiproxy >= 7.2.0, <= 7.2.15'
  - 'fortiproxy >= 7.4.0, <= 7.4.13'
  - 'fortiproxy >= 7.6.0, <= 7.6.5'
  - 'fortios >= 7.2.0, <= 7.2.13'
  - 'fortios >= 7.4.0, <= 7.4.8'
  - 'fortios >= 7.6.0, <= 7.6.2'
published: '2026-07-14'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T14:10:00.117'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-43892'
references:
  - url: 'https://fortiguard.fortinet.com/psirt/#5944'
    label: psirt@fortinet.com
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-864900.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00381
epssPercentile: 0.31946
ingestedAt: '2026-07-17T13:12:08.443Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-14T15:57:30.990330Z'
scores:
  nvd: 4.3
  cna: 4.1
---

## Overview

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.

## Affected

- `fortiproxy >= 7.2.0, <= 7.2.15`
- `fortiproxy >= 7.4.0, <= 7.4.13`
- `fortiproxy >= 7.6.0, <= 7.6.5`
- `fortios >= 7.2.0, <= 7.2.13`
- `fortios >= 7.4.0, <= 7.4.8`
- `fortios >= 7.6.0, <= 7.6.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.