SSA-834709

Vulnerability from csaf_siemens - Published: 2026-08-11 00:00 - Updated: 2026-11-10 00:00
Summary
SSA-834709: Missing Authentication Vulnerability in Node-RED on SIMATIC IoT2050 with Industrial OS
Notes
Summary: SIMATIC IoT2050 devices running Industrial OS with Node-RED installed contain a missing authentication vulnerability in the Node-RED HTTP interface that could allow an unauthenticated remote attacker to create malicious flows and execute arbitrary code on the underlying server with maximum privileges. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available.
General Recommendations: As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use: The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
CVE-2026-58115

Affected devices do not enforce authentication on the Node-RED HTTP interface, allowing unauthenticated access to programming nodes that are capable of executing system commands on the server. This could allow an unauthenticated remote attacker to create malicious flows through the HTTP interface in order to execute arbitrary code on the underlying server with maximum privileges.

10.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-306 - Missing Authentication for Critical Function
Affected products
Product Identifier Version Remediation
SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) < V4.3.4-1 running Industrial OS with Node-RED installed
Siemens / SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)
 6ES7647-0BA00-1YA2 vers:intdot/<4.3.4.1
Mitigation
Mitigation
Vendor Fix fix
SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) running Example Image versions with Node-RED installed
Siemens / SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)
 6ES7647-0BA00-1YA2 vers:all/*
Mitigation
Mitigation
None Available
SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) < V4.3.4-1 running Industrial OS with Node-RED installed
Siemens / SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2)
 6ES7647-0BA00-0YA2 vers:intdot/<4.3.4.1
Mitigation
Mitigation
Vendor Fix fix
SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) running Example Image versions with Node-RED installed
Siemens / SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2)
 6ES7647-0BA00-0YA2 vers:all/*
Mitigation
Mitigation
None Available
SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) < V4.3.4-1 running Industrial OS with Node-RED installed
Siemens / SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2)
 6ES7647-0BB00-1YA2 vers:intdot/<4.3.4.1
Mitigation
Mitigation
Vendor Fix fix
SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) running Example Image versions with Node-RED installed
Siemens / SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2)
 6ES7647-0BB00-1YA2 vers:all/*
Mitigation
Mitigation
None Available
SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) < V4.3.4-1 running Industrial OS with Node-RED installed
Siemens / SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2)
 6ES7647-0CA00-1AA2 vers:intdot/<4.3.4.1
Mitigation
Mitigation
Vendor Fix fix
SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) running Example Image versions with Node-RED installed
Siemens / SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2)
 6ES7647-0CA00-1AA2 vers:all/*
Mitigation
Mitigation
None Available
References
To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "SIMATIC IoT2050 devices running Industrial OS with Node-RED installed contain a missing authentication vulnerability in the Node-RED HTTP interface that could allow an unauthenticated remote attacker to create malicious flows and execute arbitrary code on the underlying server with maximum privileges.\n\nSiemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-834709: Missing Authentication Vulnerability in Node-RED on SIMATIC IoT2050 with Industrial OS - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-834709.html"
      },
      {
        "category": "self",
        "summary": "SSA-834709: Missing Authentication Vulnerability in Node-RED on SIMATIC IoT2050 with Industrial OS - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-834709.json"
      }
    ],
    "title": "SSA-834709: Missing Authentication Vulnerability in Node-RED on SIMATIC IoT2050 with Industrial OS",
    "tracking": {
      "current_release_date": "2026-11-10T00:00:00.000Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-834709",
      "initial_release_date": "2026-08-11T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-08-11T00:00:00.000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2026-11-04T00:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Clarified Affected products list. Updated title. Updated summary."
        },
        {
          "date": "2026-11-10T00:00:00.000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added additional affected configuration for SIMATIC IoT2050 family"
        }
      ],
      "status": "interim",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:intdot/\u003c4.3.4.1",
                "product": {
                  "name": "SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) \u003c V4.3.4-1 running Industrial OS with Node-RED installed",
                  "product_id": "1",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0BA00-1YA2"
                    ]
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) running Example Image versions with Node-RED installed",
                  "product_id": "2",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0BA00-1YA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:intdot/\u003c4.3.4.1",
                "product": {
                  "name": "SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) \u003c V4.3.4-1 running Industrial OS with Node-RED installed",
                  "product_id": "3",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0BA00-0YA2"
                    ]
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) running Example Image versions with Node-RED installed",
                  "product_id": "4",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0BA00-0YA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:intdot/\u003c4.3.4.1",
                "product": {
                  "name": "SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) \u003c V4.3.4-1 running Industrial OS with Node-RED installed",
                  "product_id": "5",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0BB00-1YA2"
                    ]
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) running Example Image versions with Node-RED installed",
                  "product_id": "6",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0BB00-1YA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:intdot/\u003c4.3.4.1",
                "product": {
                  "name": "SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) \u003c V4.3.4-1 running Industrial OS with Node-RED installed",
                  "product_id": "7",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0CA00-1AA2"
                    ]
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) running Example Image versions with Node-RED installed",
                  "product_id": "8",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7647-0CA00-1AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-58115",
      "cwe": {
        "id": "CWE-306",
        "name": "Missing Authentication for Critical Function"
      },
      "notes": [
        {
          "category": "description",
          "text": "Affected devices do not enforce authentication on the Node-RED HTTP interface, allowing unauthenticated access to programming nodes that are capable of executing system commands on the server.\r\nThis could allow an unauthenticated remote attacker to create malicious flows through the HTTP interface in order to execute arbitrary code on the underlying server with maximum privileges.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Harden the Node-RED installation (see Node-RED User Guide)",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
          ]
        },
        {
          "category": "mitigation",
          "details": "Uninstall Node-RED",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "2",
            "4",
            "6",
            "8"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.3.4-1 or later version",
          "product_ids": [
            "3",
            "5",
            "7"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109741799/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.3.4-1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109741799/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 10.0,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
          ]
        }
      ],
      "title": "CVE-2026-58115"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.