CVE-2025-64157

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-10 · updated 2026-06-17
Weakness: CWE-134

Description

A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0 all versions allows an authenticated admin to execute unauthorized code or commands via specifically crafted configuration.

Affected products

Fortinet FortiOS (FortiGate): from 7.0.0 before 7.4.10; from 7.6.0 before 7.6.5 — fixed in 7.4.10, 7.6.5

How to fix

Upgrade to a fixed version: Fortinet FortiOS (FortiGate) 7.4.10, 7.6.5. Check the vendor advisory for mitigations.

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-795
https://cert-portal.siemens.com/productcert/html/ssa-975644.html

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