CVE-2025-58903

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-14 · updated 2026-10-08
Weakness: CWE-252

Description

An Unchecked Return Value vulnerability [CWE-252] in Fortinet FortiOS version 7.6.0 through 7.6.3 and before 7.4.8 API allows an authenticated user to cause a Null Pointer Dereference, crashing the http daemon via a specialy crafted request.

Affected products

Fortinet FortiOS (FortiGate): from 6.4.0 before 7.4.9; from 7.6.0 before 7.6.4 — fixed in 7.4.9, 7.6.4

How to fix

Upgrade to a fixed version: Fortinet FortiOS (FortiGate) 7.4.9, 7.6.4. Check the vendor advisory for mitigations.

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-653
https://cert-portal.siemens.com/productcert/html/ssa-864900.html

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