Siemens SINEC INS up to 1.0 SP2 Update 5 /api/sftp/uploadFiles os command injection

Summaryinfo

A vulnerability was found in Siemens SINEC INS up to 1.0 SP2 Update 5 and classified as critical. Affected is an unknown function of the file /api/sftp/uploadFiles. Executing a manipulation can lead to os command injection. This vulnerability appears as CVE-2026-46746. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Siemens SINEC INS up to 1.0 SP2 Update 5. This vulnerability affects an unknown code of the file /api/sftp/uploadFiles. 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 vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6). The application does not properly sanitize user input in the /api/sftp/uploadFiles endpoint, allowing the injection of shell command payloads via crafted directory names. These payloads are stored and executed when directory listings are retrieved. This could allow an authenticated remote attacker to execute arbitrary commands on the underlying operating system with the privileges of the affected service user (sinecins).

The advisory is available at cert-portal.siemens.com. This vulnerability was named CVE-2026-46746 since 05/18/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/09/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 1.0 SP2 Update 6 eliminates this vulnerability.

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Productinfo

Vendor

• Siemens

Name

• SINEC INS

Version

• 1.0 SP2 Update 5

License

• commercial

Website

• Vendor: https://www.siemens.com/

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