cnvd - cnvd-2026-00021

CNVD-2026-00021

Vulnerability from cnvd - Published: 2026-01-04

Title

Siemens SIMATIC CN 4100命令注入漏洞

Description

Siemens SIMATIC CN 4100是德国西门子（Siemens）公司的一个通信节点。 Siemens SIMATIC CN 4100存在命令注入漏洞，该漏洞源于REST API输入参数验证不足，攻击者可利用该漏洞导致执行任意代码。

Severity

高

Patch Name

Siemens SIMATIC CN 4100命令注入漏洞的补丁

Patch Description

Siemens SIMATIC CN 4100是德国西门子（Siemens）公司的一个通信节点。 Siemens SIMATIC CN 4100存在命令注入漏洞，该漏洞源于REST API输入参数验证不足，攻击者可利用该漏洞导致执行任意代码。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://support.industry.siemens.com/cs/document/109814144/communication-node-simatic-cn-4100-v4-0-1?lc=en-ww

Reference

https://cert-portal.siemens.com/productcert/html/ssa-416652.html

Impacted products

Name
Siemens SIMATIC CN 4100 <V4.0.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-40937",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-40937"
    }
  },
  "description": "Siemens SIMATIC CN 4100\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u901a\u4fe1\u8282\u70b9\u3002\n\nSiemens SIMATIC CN 4100\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eREST API\u8f93\u5165\u53c2\u6570\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://support.industry.siemens.com/cs/document/109814144/communication-node-simatic-cn-4100-v4-0-1?lc=en-ww",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-00021",
  "openTime": "2026-01-04",
  "patchDescription": "Siemens SIMATIC CN 4100\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u901a\u4fe1\u8282\u70b9\u3002\r\n\r\nSiemens SIMATIC CN 4100\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eREST API\u8f93\u5165\u53c2\u6570\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\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 CN 4100\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Siemens SIMATIC CN 4100 \u003cV4.0.1"
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-416652.html",
  "serverity": "\u9ad8",
  "submitTime": "2025-12-15",
  "title": "Siemens SIMATIC CN 4100\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2025-40937 (GCVE-0-2025-40937)

Vulnerability from cvelistv5 – Published: 2025-12-09 10:44 – Updated: 2025-12-09 15:33

Summary

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of unexpected arguments. This could allow an authenticated attacker to execute arbitrary code with limited privileges.

Severity ?

8.3 (High)


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

8.7 (High)


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

CWE

CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Assigner

siemens

References

URL

Tags

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

Impacted products

	Vendor	Product	Version
	Siemens	SIMATIC CN 4100	Affected: 0 , < V4.0.1 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-40937",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-09T15:30:10.583434Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-09T15:33:38.168Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC CN 4100",
          "vendor": "Siemens",
          "versions": [
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              "lessThan": "V4.0.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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      "descriptions": [
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          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of unexpected arguments.\r\nThis could allow an authenticated attacker to execute arbitrary code with limited privileges."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
            "version": "3.1"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-77",
              "description": "CWE-77: Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T10:44:35.795Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-416652.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
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    "cveId": "CVE-2025-40937",
    "datePublished": "2025-12-09T10:44:35.795Z",
    "dateReserved": "2025-04-16T09:06:15.878Z",
    "dateUpdated": "2025-12-09T15:33:38.168Z",
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}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2026-00021

CVE-2025-40937 (GCVE-0-2025-40937)

Tags

Sightings

Nomenclature