Vulnerability-Lookup

CNVD-2026-34825

Vulnerability from cnvd - Published: 2026-09-02

Title

Siemens Desigo DXR2异常处理不当漏洞

Description

Siemens Desigo DXR2是德国Siemens公司的一款工业自动化控制设备。 Siemens Desigo DXR2存在异常处理不当漏洞，该漏洞源于对畸形BACnet数据包处理不当，攻击者可利用该漏洞导致设备停止响应BACnet查询，造成拒绝服务。

Severity

低

Patch Name

Siemens Desigo DXR2异常处理不当漏洞的补丁

Patch Description

Siemens Desigo DXR2是德国Siemens公司的一款工业自动化控制设备。 Siemens Desigo DXR2存在异常处理不当漏洞，该漏洞源于对畸形BACnet数据包处理不当，攻击者可利用该漏洞导致设备停止响应BACnet查询，造成拒绝服务。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

用户可参考如下供应商提供的安全公告获得补丁信息： https://cert-portal.siemens.com/productcert/html/ssa-781903.html

Reference

https://cert-portal.siemens.com/productcert/html/ssa-781903.html

Impacted products

Name
['Siemens Desigo DXR2 <V01.21.233.16-7862', 'Siemens Desigo PXC3 <V01.21.233.16-7862', 'Siemens Desigo PXC4 <V02.21.194.36-2715', 'Siemens Desigo PXC5.E003 <V02.21.194.36-2715', 'Siemens Desigo PXC5.E24 <V02.21.194.36-2715', 'Siemens Desigo PXC7 <V02.21.194.36-2715']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-59693"
    }
  },
  "description": "Siemens Desigo DXR2\u662f\u5fb7\u56fdSiemens\u516c\u53f8\u7684\u4e00\u6b3e\u5de5\u4e1a\u81ea\u52a8\u5316\u63a7\u5236\u8bbe\u5907\u3002\n\nSiemens Desigo DXR2\u5b58\u5728\u5f02\u5e38\u5904\u7406\u4e0d\u5f53\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7578\u5f62BACnet\u6570\u636e\u5305\u5904\u7406\u4e0d\u5f53\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u505c\u6b62\u54cd\u5e94BACnet\u67e5\u8be2\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://cert-portal.siemens.com/productcert/html/ssa-781903.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-34825",
  "openTime": "2026-09-02",
  "patchDescription": "Siemens Desigo DXR2\u662f\u5fb7\u56fdSiemens\u516c\u53f8\u7684\u4e00\u6b3e\u5de5\u4e1a\u81ea\u52a8\u5316\u63a7\u5236\u8bbe\u5907\u3002\r\n\r\nSiemens Desigo DXR2\u5b58\u5728\u5f02\u5e38\u5904\u7406\u4e0d\u5f53\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7578\u5f62BACnet\u6570\u636e\u5305\u5904\u7406\u4e0d\u5f53\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u505c\u6b62\u54cd\u5e94BACnet\u67e5\u8be2\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\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 Desigo DXR2\u5f02\u5e38\u5904\u7406\u4e0d\u5f53\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Siemens Desigo DXR2 \u003cV01.21.233.16-7862",
      "Siemens Desigo PXC3 \u003cV01.21.233.16-7862",
      "Siemens Desigo PXC4 \u003cV02.21.194.36-2715",
      "Siemens Desigo PXC5.E003 \u003cV02.21.194.36-2715",
      "Siemens Desigo PXC5.E24 \u003cV02.21.194.36-2715",
      "Siemens Desigo PXC7 \u003cV02.21.194.36-2715"
    ]
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-781903.html",
  "serverity": "\u4f4e",
  "submitTime": "2026-08-26",
  "title": "Siemens Desigo DXR2\u5f02\u5e38\u5904\u7406\u4e0d\u5f53\u6f0f\u6d1e"
}

CVE-2026-59693 (GCVE-0-2026-59693)

Vulnerability from cvelistv5 – Published: 2026-08-11 12:20 – Updated: 2026-08-11 18:08

Summary

A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.233.16-7862), Desigo PXC3 (All versions < V01.21.233.16-7862), Desigo PXC4 (All versions < V02.21.194.36-2715), Desigo PXC5.E003 (All versions < V02.21.194.36-2715), Desigo PXC5.E24 (All versions < V02.21.194.36-2715), Desigo PXC7 (All versions < V02.21.194.36-2715). The affected devices are vulnerable to a denial-of-service (DoS) vulnerability. An attacker can exploit this issue by sending a malformed BACnet packet, causing the device to stop responding to BACnet queries. Recovery requires a device reset or reboot to restore normal functionality.

Severity

4.3 (Medium)


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

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-11 18:08 UTC

CWE

CWE-754 - Improper Check for Unusual or Exceptional Conditions

Assigner

siemens icscert root

References

1 reference

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

Impacted products

6 products

Vendor	Product	Version
Siemens	Desigo DXR2	Affected: 0 , < V01.21.233.16-7862 (custom)
Siemens	Desigo PXC3	Affected: 0 , < V01.21.233.16-7862 (custom)
Siemens	Desigo PXC4	Affected: 0 , < V02.21.194.36-2715 (custom)
Siemens	Desigo PXC5.E003	Affected: 0 , < V02.21.194.36-2715 (custom)
Siemens	Desigo PXC5.E24	Affected: 0 , < V02.21.194.36-2715 (custom)
Siemens	Desigo PXC7	Affected: 0 , < V02.21.194.36-2715 (custom)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-59693",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-11T18:08:48.569650Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-11T18:08:58.835Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Desigo DXR2",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V01.21.233.16-7862",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Desigo PXC3",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V01.21.233.16-7862",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Desigo PXC4",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V02.21.194.36-2715",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Desigo PXC5.E003",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V02.21.194.36-2715",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Desigo PXC5.E24",
          "vendor": "Siemens",
          "versions": [
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              "lessThan": "V02.21.194.36-2715",
              "status": "affected",
              "version": "0",
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            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Desigo PXC7",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V02.21.194.36-2715",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.233.16-7862), Desigo PXC3 (All versions \u003c V01.21.233.16-7862), Desigo PXC4 (All versions \u003c V02.21.194.36-2715), Desigo PXC5.E003 (All versions \u003c V02.21.194.36-2715), Desigo PXC5.E24 (All versions \u003c V02.21.194.36-2715), Desigo PXC7 (All versions \u003c V02.21.194.36-2715). The affected devices are vulnerable to a denial-of-service (DoS) vulnerability. An attacker can exploit this issue by sending a malformed BACnet packet, causing the device to stop responding to BACnet queries. Recovery requires a device reset or reboot to restore normal functionality."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-754",
              "description": "CWE-754: Improper Check for Unusual or Exceptional Conditions",
              "lang": "en",
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          ]
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      "providerMetadata": {
        "dateUpdated": "2026-08-11T12:20:26.209Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-781903.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2026-59693",
    "datePublished": "2026-08-11T12:20:26.209Z",
    "dateReserved": "2026-07-06T13:50:39.917Z",
    "dateUpdated": "2026-08-11T18:08:58.835Z",
    "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-2026-34825

CVE-2026-59693 (GCVE-0-2026-59693)

Tags

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Nomenclature

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