Secuno
ENNL
Book demo

CVE-2025-24472

Fortinet FortiOS and FortiProxy Authentication Bypass

8.1 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 7.23%
  1. Published11 Feb 2025
  2. Added to CISA KEV18 Mar 2025
  3. Remediation due8 Apr 2025
Actively exploited (CISA KEV)

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

Added to KEV: 18 Mar 2025Federal remediation due: 8 Apr 2025Used in ransomware

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Fortinet FortiProxy≥ 7.0.0 < 7.0.20 · ≥ 7.2.0 < 7.2.13
Fortinet FortiOS≥ 7.0.0 < 7.0.17

Remediation

Fixed in
Fortinet FortiProxy≥ 7.0.20
Fortinet FortiOS≥ 7.0.17

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-196228.8
IBM Planning Analytics 2.0, and 2.1 could allow a remote attacker to bypass…
CVE-2026-196208.8
IBM Planning Analytics 2.0, and 2.1 could allow a remote attacker to gain unauthorized…
CVE-2026-843608.1
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the HTTP…
CVE-2026-1040759.8
TVU Networks Receiver/Transceiver devices running firmware before version 7.9 contain…
CVE-2026-397938.8
Subscriber Broken Authentication in Simple JWT Login 4.0.0…
CVE-2026-634938.1
Snipe-IT is an IT asset/license management system. Prior to 8.7.0, a…

Frequently asked

Is CVE-2025-24472 being actively exploited?

Yes. CVE-2025-24472 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 18 Mar 2025. It has been used in ransomware campaigns.

How severe is CVE-2025-24472?

CVE-2025-24472 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 7.23% probability of exploitation.

Which products are affected by CVE-2025-24472?

Affected products include Fortinet FortiProxy, Fortinet FortiOS.

How do I fix CVE-2025-24472?

Upgrade affected software to a fixed version, for example Fortinet FortiProxy 7.0.20, Fortinet FortiOS 7.0.17 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-24472 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.