Vulnerability-Lookup

CNVD-2026-34873

Vulnerability from cnvd - Published: 2026-09-02

Title

Siemens SIMATIC IoT2050 Advanced授权问题漏洞

Description

Siemens SIMATIC IoT2050 Advanced是德国Siemens公司的一款物联网边缘计算网关设备。 Siemens SIMATIC IoT2050 Advanced存在授权问题漏洞，该漏洞源于Node-RED HTTP接口未实施身份验证，未经身份验证的攻击者可利用该漏洞通过HTTP接口创建恶意流程，从而在底层服务器上以最高权限执行任意代码。

Severity

高

Patch Name

Siemens SIMATIC IoT2050 Advanced授权问题漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://cert-portal.siemens.com/productcert/html/ssa-834709.html

Reference

https://cert-portal.siemens.com/productcert/html/ssa-834709.html

Impacted products

Name
Siemens SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) <V4.3.4.1

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-58115",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-58115"
    }
  },
  "description": "Siemens SIMATIC IoT2050 Advanced\u662f\u5fb7\u56fdSiemens\u516c\u53f8\u7684\u4e00\u6b3e\u7269\u8054\u7f51\u8fb9\u7f18\u8ba1\u7b97\u7f51\u5173\u8bbe\u5907\u3002\n\nSiemens SIMATIC IoT2050 Advanced\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eNode-RED HTTP\u63a5\u53e3\u672a\u5b9e\u65bd\u8eab\u4efd\u9a8c\u8bc1\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7HTTP\u63a5\u53e3\u521b\u5efa\u6076\u610f\u6d41\u7a0b\uff0c\u4ece\u800c\u5728\u5e95\u5c42\u670d\u52a1\u5668\u4e0a\u4ee5\u6700\u9ad8\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://cert-portal.siemens.com/productcert/html/ssa-834709.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-34873",
  "openTime": "2026-09-02",
  "patchDescription": "Siemens SIMATIC IoT2050 Advanced\u662f\u5fb7\u56fdSiemens\u516c\u53f8\u7684\u4e00\u6b3e\u7269\u8054\u7f51\u8fb9\u7f18\u8ba1\u7b97\u7f51\u5173\u8bbe\u5907\u3002\r\n\r\nSiemens SIMATIC IoT2050 Advanced\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eNode-RED HTTP\u63a5\u53e3\u672a\u5b9e\u65bd\u8eab\u4efd\u9a8c\u8bc1\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7HTTP\u63a5\u53e3\u521b\u5efa\u6076\u610f\u6d41\u7a0b\uff0c\u4ece\u800c\u5728\u5e95\u5c42\u670d\u52a1\u5668\u4e0a\u4ee5\u6700\u9ad8\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Siemens SIMATIC IoT2050 Advanced\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Siemens SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)  \u003cV4.3.4.1"
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-834709.html",
  "serverity": "\u9ad8",
  "submitTime": "2026-08-20",
  "title": "Siemens SIMATIC IoT2050 Advanced\u6388\u6743\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2026-58115 (GCVE-0-2026-58115)

Vulnerability from cvelistv5 – Published: 2026-08-11 12:20 – Updated: 2026-08-12 19:19

Summary

A vulnerability has been identified in SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (All versions < V4.3.4.1 running Industrial OS with Node-RED installed). 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.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

10 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-12 17:59 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

siemens icscert root

References

1 reference

URL	Tags
https://cert-portal.siemens.com/productcert/html/…

Impacted products

1 product

Vendor	Product	Version
Siemens	SIMATIC IoT2050 Advanced	Affected: 0 , < V4.3.4.1 (custom)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58115",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T17:59:33.476267Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-12T19:19:54.001Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC IoT2050 Advanced",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V4.3.4.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (All versions \u003c V4.3.4.1 running Industrial OS with Node-RED installed). 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 10,
            "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"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306: Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-11T12:20:24.045Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-834709.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2026-58115",
    "datePublished": "2026-08-11T12:20:24.045Z",
    "dateReserved": "2026-06-29T12:59:54.795Z",
    "dateUpdated": "2026-08-12T19:19:54.001Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2026-34873

CVE-2026-58115 (GCVE-0-2026-58115)

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