---
id: "CVE-2025-24472"
kind: "vulnerability"
aliases: ["CVE-2025-24472"]
title: "An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS 7.0.0 through\u2026"
severity: "critical"
cvss: 8.1
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Fortinet FortiOS and FortiProxy", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "fortinet fortiproxy", "fixed": ["7.0.20"], "affected": ">= 7.0.0, < 7.0.20", "ecosystem": "vendor"}, {"name": "fortinet fortiproxy", "fixed": ["7.2.13"], "affected": ">= 7.2.0, < 7.2.13", "ecosystem": "vendor"}, {"name": "fortinet fortios", "fixed": ["7.0.17"], "affected": ">= 7.0.0, < 7.0.17", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "fortigate", "fortios", "fortiproxy", "infrastructure", "ransomware", "self-hosted"]
not_affected_if: ["default-config"]
published_at: "2025-02-11T17:15:34+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-24472", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24472", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS 7.0.0 through…

Fortinet FortiOS and FortiProxy contain an authentication bypass that lets a remote attacker gain super-admin privileges by sending crafted CSF proxy requests. CISA lists it as actively exploited, and the KEV entry notes known ransomware use.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Fortinet FortiOS and FortiProxy affected ? fixed ?
- vendor:fortinet fortiproxy affected >= 7.0.0, < 7.0.20 fixed 7.0.20
- vendor:fortinet fortiproxy affected >= 7.2.0, < 7.2.13 fixed 7.2.13
- vendor:fortinet fortios affected >= 7.0.0, < 7.0.17 fixed 7.0.17

## Fix

Apply the mitigation or patch per Fortinet's vendor advisory; CISA says to discontinue use of the product if mitigations are unavailable. Exact fixed versions: unknown.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-24472
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-24472

## From the sources

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS 7.0.0 through 7.0.16 and FortiProxy 7.2.0 through 7.2.12, 7.0.0 through 7.0.19 may allow a remote unauthenticated attacker with prior knowledge of upstream and downstream devices serial numbers to gain super-admin privileges on the downstream device, if the Security Fabric is enabled, via crafted CSF proxy requests.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_