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Known Exploited Vulnerability
8.1
HIGH CVSS 3.1
CVE-2025-24472
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability - [Actively Exploited]
Description

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.

INFO

Published Date :

Feb. 11, 2025, 5:15 p.m.

Last Modified :

Oct. 24, 2025, 12:53 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that allows a remote attacker to gain super-admin privileges via crafted CSF proxy requests.

Required Action :

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes :

https://fortiguard.fortinet.com/psirt/FG-IR-24-535 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24472

Affected Products

The following products are affected by CVE-2025-24472 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fortinet fortios
2 Fortinet fortiproxy
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Update FortiOS and FortiProxy to a patched version to address authentication bypass.
  • Update FortiOS to a non-vulnerable version.
  • Update FortiProxy to a non-vulnerable version.
  • Disable Security Fabric if unable to patch.
Public PoC/Exploit Available at Github

CVE-2025-24472 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-24472.

URL Resource
https://fortiguard.fortinet.com/psirt/FG-IR-24-535 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24472 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-24472 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-24472 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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opendr-io/causality

A repo for output of an intrusion prediction project

Jupyter Notebook Python Standard ML

Updated: 2 days, 12 hours ago
10 stars 1 fork 1 watcher
Born at : Jan. 4, 2025, 1:44 a.m. This repo has been linked 68 different CVEs too.
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ums91/CISA_BOT

CISA Bot is a GitHub bot that automatically monitors the Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) Catalog. When new vulnerabilities are published in the KEV, the bot creates GitHub issues in this repository with detailed information about each vulnerability.

Python

Updated: 2 months ago
2 stars 1 fork 1 watcher
Born at : Oct. 29, 2024, 10:19 a.m. This repo has been linked 206 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-24472 vulnerability anywhere in the article.

  • The Cyber Express
22 Vulnerabilities Under Attack – And Another That Could Be

Cyble researchers detailed 22 vulnerabilities under active attack in a blog post today – and nine of them aren’t in CISA’s Known Exploited Vulnerabilities (KEV) catalog. Twelve of the vulnerabilities ... Read more

Published Date: Sep 23, 2025 (1 month, 1 week ago)
  • The Hacker News
Hackers Abuse Russian Bulletproof Host Proton66 for Global Attacks and Malware Delivery

Vulnerability / Threat Intelligence Cybersecurity researchers have disclosed a surge in "mass scanning, credential brute-forcing, and exploitation attempts" originating from IP addresses associated wi ... Read more

Published Date: Apr 21, 2025 (6 months, 1 week ago)
  • BleepingComputer
Critical FortiSwitch flaw lets hackers change admin passwords remotely

Fortinet has released security patches for a critical vulnerability in its FortiSwitch devices that can be exploited to change administrator passwords remotely. The company says Daniel Rozeboom of the ... Read more

Published Date: Apr 09, 2025 (6 months, 3 weeks ago)
  • security.nl
Fortinet maakt kritiek firewall-lek maand na uitkomen update bekend

Fortinet heeft een kritieke kwetsbaarheid in de firewalls en vpn-oplossingen die het biedt een maand na het uitkomen van de beveiligingsupdate bekendgemaakt. Via het beveiligingslek (CVE-2025-24472) i ... Read more

Published Date: Feb 12, 2025 (8 months, 2 weeks ago)
  • BleepingComputer
Fortinet warns of new zero-day exploited to hijack firewalls

Fortinet warned today that attackers are exploiting another now-patched zero-day bug in FortiOS and FortiProxy to hijack Fortinet firewalls and breach enterprise networks. Successful exploitation of t ... Read more

Published Date: Feb 11, 2025 (8 months, 2 weeks ago)
  • BleepingComputer
Fortinet discloses second firewall auth bypass patched in January

Update 2/11/25 07:32 PM ET: After publishing our story, Fortinet has informed us that the new CVE-2025-24472 flaw added to FG-IR-24-535 today is not a zero-day and was already fixed in January. Furthe ... Read more

Published Date: Feb 11, 2025 (8 months, 2 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-24472 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Oct. 24, 2025

    Action Type Old Value New Value
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24472 Types: US Government Resource
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 21, 2025

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24472
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 21, 2025

    Action Type Old Value New Value
    Removed Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24472
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 21, 2025

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24472
  • Modified Analysis by [email protected]

    Aug. 08, 2025

    Action Type Old Value New Value
    Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Removed CWE CWE-306
  • CVE Modified by [email protected]

    Aug. 07, 2025

    Action Type Old Value New Value
    Changed Description 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 attacker to gain super-admin privileges via crafted CSF proxy requests. 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.
  • Initial Analysis by [email protected]

    Mar. 19, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-306
    Added CPE Configuration OR *cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.20 *cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* versions from (including) 7.2.0 up to (excluding) 7.2.13 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.17
    Added Reference Type Fortinet, Inc.: https://fortiguard.fortinet.com/psirt/FG-IR-24-535 Types: Vendor Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Mar. 19, 2025

    Action Type Old Value New Value
    Added Date Added 2025-03-18
    Added Due Date 2025-04-08
    Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
    Added Vulnerability Name Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
  • New CVE Received by [email protected]

    Feb. 11, 2025

    Action Type Old Value New Value
    Added Description 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 attacker to gain super-admin privileges via crafted CSF proxy requests.
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-288
    Added Reference https://fortiguard.fortinet.com/psirt/FG-IR-24-535
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact