Fortinet FortiSandbox/FortiSandbox Cloud/FortiSandbox PaaS HTTP os command injection

Summaryinfo

A vulnerability was found in Fortinet FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS and classified as critical. The affected element is an unknown function of the component HTTP Handler. Executing a manipulation can lead to os command injection. This vulnerability is tracked as CVE-2026-25089. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability has been found in Fortinet FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS (the affected version is unknown) and classified as very critical. This vulnerability affects an unknown code of the component HTTP Handler. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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

The advisory is available at fortiguard.fortinet.com. This vulnerability was named CVE-2026-25089 since 01/29/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/16/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

It is declared as attacked. This issue was added on 07/16/2026 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 07/19/2026:

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 BO

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Cloud Software

Vendor

• Fortinet

Name

• FortiSandbox
• FortiSandbox Cloud
• FortiSandbox PaaS

License

• commercial

Website

• Vendor: https://www.fortinet.com/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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