9.1 Critical Exploited

CVE-2026-25089 Fortinet FortiSandbox OS Command Injection Vulnerability

Active exploitation observed

· CISA KEV catalogue

Required action 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.

Ransomware campaigns Not observed so far

Weakness CWE-78

Description

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox Cloud 5.0.4 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests

Affected products and versions

Product	Affected versions	Fixed in
FortiSandbox 5.0	5.0.0 → 5.0.5	No fix stated
FortiSandbox 4.4	4.4.0 → 4.4.8	No fix stated
FortiSandbox 4.2	4.2.1 → 4.2.8	No fix stated
FortiSandbox Cloud 5.0	5.0.4 → 5.0.5	No fix stated
FortiSandbox PaaS 5.0	5.0.4 → 5.0.5	No fix stated

References

fortiguard.fortinet.com fortiguard.fortinet.com

Timeline

Published June 9, 2026
Added to the KEV catalogue July 16, 2026
Last modified July 17, 2026

The 52 CVEs of FortiSandbox →

CVE-2026-107656 An authentication bypass using an alternate path or channel vulnerability in Fortinet FortiSandbox 5.0.0 through… 9.6 Critical CVE-2026-106172 A use of hard-coded cryptographic key vulnerability in Fortinet FortiSandbox 5.2.0 through 5.2.1, FortiSandbox 5.0.0… 4.9 Medium CVE-2026-106170 An Uncaught Exception vulnerability [CWE-248] vulnerability in Fortinet FortiSandbox 5.2.0 through 5.2.1, FortiSandbox… 4.8 Medium CVE-2026-26084 A improper access control vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through… 8.9 High

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