CVE-2026-46746: Siemens SINEC INS OS command injection in SFTP upload endpoint

CVE-2026-46746 · Severity: high · CVSS 8.8 · Published 2026-06-09

Siemens SINEC INS, a web-based tool used to manage industrial network services, contains a security flaw that allows authenticated users to execute unauthorized commands. By uploading files with specially crafted directory names, an attacker can take control of the underlying operating system. This could lead to a complete compromise of the network management tool, potentially impacting the availability and security of industrial network operations.

Technologies: Siemens Sinec Ins. Vendors: Siemens.

Quick answers

Is CVE-2026-46746 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-46746 being exploited in the wild.
How severe is CVE-2026-46746?
High severity, with a CVSS score of 8.8, published 9 June 2026.
Which products and versions are affected?
Siemens Sinec Ins All versions < V1.0 SP2 Update 6.
Is there a fix for CVE-2026-46746?
A patch was published on 2026-06-09: Fixed in V1.0 SP2 Update 6 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-46746 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-46746?
Check whether you run Siemens Sinec Ins at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability exists in the /api/sftp/uploadFiles endpoint of Siemens SINEC INS due to improper sanitization of user-provided directory names. An authenticated remote attacker can inject shell command payloads via crafted directory names during file upload operations. These payloads are stored and subsequently executed when directory listings are retrieved by the application. Successful exploitation allows for arbitrary command execution with the privileges of the 'sinecins' service user. Siemens has addressed this in SINEC INS V1.0 SP2 Update 6.

Affected products

  • Siemens SINEC INS All versions < V1.0 SP2 Update 6

Timeline

  • 2026-06-09: disclosed
  • 2026-06-09: advisory
  • 2026-06-09: patched: Fixed in V1.0 SP2 Update 6

References

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