CVEs / CVE-2025-24472
CVE-2025-24472: Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
- Known exploited in the CISA KEV catalog since 18 Mar 2025
- high 8.1 CVSS 3.1 (from the CNA)
- EPSS 7.23% chance of exploitation in the next 30 days, higher than 94% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that allows a remote attacker to gain super-admin privileges via crafted CSF proxy requests.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Fortinet FortiOS | from 7.0.0, up to and including 7.0.16 | — |
| Fortinet FortiProxy | from 7.2.0, up to and including 7.2.12 | — |
| Fortinet FortiProxy | from 7.0.0, up to and including 7.0.19 | — |
Exploitation
| In CISA KEV since | 18 Mar 2025 |
|---|---|
| Due date for US federal agencies | 8 Apr 2025 |
| Used in ransomware campaigns | Known |
| 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. |
Severity
| CVSS 3.1 | 8.1 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-288 |
References
- CVE-2025-24472 on NVD
- CVE-2025-24472 in the CISA KEV catalog
- https://fortiguard.fortinet.com/psirt/FG-IR-24-535 (cited by CISA)
- 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
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.