Vulnerability-Lookup

CNVD-2026-29398

Vulnerability from cnvd - Published: 2026-07-28

Title

Siemens SICAM 8产品授权问题漏洞

Description

Siemens CPCI85 Central Processing/Communication是德国Siemens公司的一款中央处理及通信设备。Siemens SICORE Base system是SICAM 8‌电力自动化平台的核心基础软件组件，专为变电站自动化应用设计。 Siemens SICAM 8产品存在授权问题漏洞，该漏洞源于通过web API处理管理账户修改时对身份验证凭据验证不足，攻击者可利用该漏洞绕过安全控制并获得未授权的权限提升。

Severity

高

Patch Name

Siemens SICAM 8产品授权问题漏洞的补丁

Patch Description

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-229470.html

Reference

https://cert-portal.siemens.com/productcert/html/ssa-229470.html

Impacted products

Name
['Siemens CPCI85 Central Processing/Communication <V26.20', 'Siemens SICORE Base system <V26.20.0']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-54801"
    }
  },
  "description": "Siemens CPCI85 Central Processing/Communication\u662f\u5fb7\u56fdSiemens\u516c\u53f8\u7684\u4e00\u6b3e\u4e2d\u592e\u5904\u7406\u53ca\u901a\u4fe1\u8bbe\u5907\u3002Siemens SICORE Base system\u662fSICAM 8\u200c\u7535\u529b\u81ea\u52a8\u5316\u5e73\u53f0\u7684\u6838\u5fc3\u57fa\u7840\u8f6f\u4ef6\u7ec4\u4ef6\uff0c\u4e13\u4e3a\u53d8\u7535\u7ad9\u81ea\u52a8\u5316\u5e94\u7528\u8bbe\u8ba1\u3002\n\nSiemens SICAM 8\u4ea7\u54c1\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u901a\u8fc7web API\u5904\u7406\u7ba1\u7406\u8d26\u6237\u4fee\u6539\u65f6\u5bf9\u8eab\u4efd\u9a8c\u8bc1\u51ed\u636e\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u63a7\u5236\u5e76\u83b7\u5f97\u672a\u6388\u6743\u7684\u6743\u9650\u63d0\u5347\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-229470.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-29398",
  "openTime": "2026-07-28",
  "patchDescription": "Siemens CPCI85 Central Processing/Communication\u662f\u5fb7\u56fdSiemens\u516c\u53f8\u7684\u4e00\u6b3e\u4e2d\u592e\u5904\u7406\u53ca\u901a\u4fe1\u8bbe\u5907\u3002Siemens SICORE Base system\u662fSICAM 8\u200c\u7535\u529b\u81ea\u52a8\u5316\u5e73\u53f0\u7684\u6838\u5fc3\u57fa\u7840\u8f6f\u4ef6\u7ec4\u4ef6\uff0c\u4e13\u4e3a\u53d8\u7535\u7ad9\u81ea\u52a8\u5316\u5e94\u7528\u8bbe\u8ba1\u3002\r\n\r\nSiemens SICAM 8\u4ea7\u54c1\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u901a\u8fc7web API\u5904\u7406\u7ba1\u7406\u8d26\u6237\u4fee\u6539\u65f6\u5bf9\u8eab\u4efd\u9a8c\u8bc1\u51ed\u636e\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u63a7\u5236\u5e76\u83b7\u5f97\u672a\u6388\u6743\u7684\u6743\u9650\u63d0\u5347\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 SICAM 8\u4ea7\u54c1\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Siemens CPCI85 Central Processing/Communication \u003cV26.20",
      "Siemens SICORE Base system \u003cV26.20.0"
    ]
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-229470.html",
  "serverity": "\u9ad8",
  "submitTime": "2026-07-15",
  "title": "Siemens SICAM 8\u4ea7\u54c1\u6388\u6743\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2026-54801 (GCVE-0-2026-54801)

Vulnerability from cvelistv5 – Published: 2026-07-09 14:15 – Updated: 2026-07-09 17:37

Summary

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application contains insufficient validation of authentication credentials when processing administrative account modifications through the web API. This could allow an authenticated attacker to bypass security controls and gain unauthorized elevated privileges.

Severity

7.2 (High)


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

8.6 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-09 17:37 UTC

CWE

CWE-620 - Unverified Password Change

Assigner

siemens icscert root Scorecard

References

1 reference

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

Impacted products

2 products

Vendor	Product	Version
Siemens	CPCI85 Central Processing/Communication	Affected: 0 , < V26.20 (custom)
Siemens	SICORE Base system	Affected: 0 , < V26.20.0 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-54801",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-09T17:37:36.331104Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-09T17:37:43.135Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "CPCI85 Central Processing/Communication",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V26.20",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SICORE Base system",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V26.20.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions \u003c V26.20), SICORE Base system (All versions \u003c V26.20.0). The affected application contains insufficient validation of authentication credentials when processing administrative account modifications through the web API. This could allow an authenticated attacker to bypass security controls and gain unauthorized elevated privileges."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-620",
              "description": "CWE-620: Unverified Password Change",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-09T14:15:54.353Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-229470.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2026-54801",
    "datePublished": "2026-07-09T14:15:54.353Z",
    "dateReserved": "2026-06-16T07:47:12.274Z",
    "dateUpdated": "2026-07-09T17:37:43.135Z",
    "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.

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.

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CNVD-2026-29398

CVE-2026-54801 (GCVE-0-2026-54801)

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Nomenclature

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