CVE-2026-25089: critical vulnerability in Fortinet FortiSandbox
Published · Updated
Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
A flaw in Fortinet FortiSandbox allows attackers to inject malicious commands into the system through specially crafted web requests without needing to log in. This lets them run unauthorized commands and take control of the system.
OS command injection vulnerability in FortiSandbox versions 5.0.0-5.0.5, 4.4.0-4.4.8, 4.2 (all), Cloud 5.0.4-5.0.5, and PaaS 5.0.4-5.0.5 via improper neutralization of special characters in HTTP requests. Unauthenticated remote attackers can execute arbitrary system commands by crafting malicious HTTP payloads, resulting in complete system compromise.
The full analysis of this CVE is available in Portuguese →
In the same product, most dangerous first.