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PatchSiren cyber security CVE debrief

CVE-2026-46747 Siemens CVE debrief

A path traversal vulnerability was identified in Siemens SINEC INS versions prior to V1.0 SP2 Update 6. The issue arises from improper sanitization of path input in the `GET /api/sftp/uploadFiles` endpoint used for directory listing. This allows an attacker to access unintended file system locations through crafted input.

Vendor
Siemens
Product
SINEC INS
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-23
Advisory published
2026-06-09
Advisory updated
2026-06-23

Who should care

Administrators and users of Siemens SINEC INS versions prior to V1.0 SP2 Update 6 should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability has a CVSS score of 5.3 and is classified as MEDIUM severity. It allows an attacker with low privileges to access sensitive files and directories, potentially leading to unauthorized data access or modification.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update SINEC INS to version V1.0 SP2 Update 6 or later.
  • Implement proper input validation and sanitization for path inputs.
  • Restrict access to sensitive file system locations.
  • Monitor system logs for suspicious activity.

Evidence notes

The vulnerability was reported by Siemens and is publicly disclosed through CVE-2026-46747.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46747 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46747

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46747 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46747

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.