March 18, 2025 · Applied Cybernetics Group
CVE-2025-24472 — Fortinet FortiOS and FortiProxy
known ransomware use
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
- Added to KEV
2025-03-18- Federal due date
2025-04-08- Vendor
- Fortinet
- Product
- FortiOS and FortiProxy
- EPSS
- 86.2th percentile (score 0.031, as of
2026-07-13) - NVD CVSS v3.1
- 8.1 (HIGH)
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2025-24472
CISA short 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.
NVD 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.