Vulnerability-Lookup

CNVD-2026-24202

Vulnerability from cnvd - Published: 2026-06-17

Title

多款Siemens产品越界读取漏洞（CNVD-2026-24202）

Description

Siemens SIMATIC PCS neo是一个分布式控制系统。Siemens User Management Component是一个维护西门子软件的组件。多款Siemens产品存在越界读取漏洞，攻击者可利用该漏洞导致拒绝服务。

Severity

高

Patch Name

多款Siemens产品越界读取漏洞（CNVD-2026-24202）的补丁

Patch Description

Siemens SIMATIC PCS neo是一个分布式控制系统。Siemens User Management Component是一个维护西门子软件的组件。多款Siemens产品存在越界读取漏洞，攻击者可利用该漏洞导致拒绝服务。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

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-722410.html

Reference

https://cert-portal.siemens.com/productcert/html/ssa-722410.html

Impacted products

Name
['Siemens SIMATIC PCS neo V4.1', 'Siemens SIMATIC PCS neo V5.0', 'Siemens SIMATIC PCS neo V6.0', 'SIEMENS User Management Component (UMC) <V2.15.1.3']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-40797",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-40797"
    }
  },
  "description": "Siemens SIMATIC PCS neo\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u63a7\u5236\u7cfb\u7edf\u3002Siemens User Management Component\u662f\u4e00\u4e2a\u7ef4\u62a4\u897f\u95e8\u5b50\u8f6f\u4ef6\u7684\u7ec4\u4ef6\u3002 \n\n\u591a\u6b3eSiemens\u4ea7\u54c1\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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-722410.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-24202",
  "openTime": "2026-06-17",
  "patchDescription": "Siemens SIMATIC PCS neo\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u63a7\u5236\u7cfb\u7edf\u3002Siemens User Management Component\u662f\u4e00\u4e2a\u7ef4\u62a4\u897f\u95e8\u5b50\u8f6f\u4ef6\u7684\u7ec4\u4ef6\u3002 \r\n\r\n\u591a\u6b3eSiemens\u4ea7\u54c1\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\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": "\u591a\u6b3eSiemens\u4ea7\u54c1\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff08CNVD-2026-24202\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Siemens SIMATIC PCS neo V4.1",
      "Siemens SIMATIC PCS neo V5.0",
      "Siemens SIMATIC PCS neo V6.0",
      "SIEMENS User Management Component (UMC) \u003cV2.15.1.3"
    ]
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-722410.html",
  "serverity": "\u9ad8",
  "submitTime": "2025-09-11",
  "title": "\u591a\u6b3eSiemens\u4ea7\u54c1\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff08CNVD-2026-24202\uff09"
}

CVE-2025-40797 (GCVE-0-2025-40797)

Vulnerability from cvelistv5 – Published: 2025-09-09 08:48 – Updated: 2026-06-09 08:46

Summary

A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), User Management Component (UMC) (All versions < V2.15.1.3). Affected products contain a out-of-bounds read vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to cause a denial of service condition.

Severity ?

7.5 (High)


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

8.7 (High)


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

CWE

CWE-125 - Out-of-bounds Read

Assigner

siemens

References

URL

Tags

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

Impacted products

Vendor

Product

Version

Siemens

SIMATIC PCS neo V4.1

Affected: 0 , < * (custom)

Siemens	SIMATIC PCS neo V5.0	Affected: 0 , < * (custom)
Siemens	SIMATIC PCS neo V6.0	Affected: 0 , < V6.0 SP1 Update 1 (custom)
Siemens	User Management Component (UMC)	Affected: 0 , < V2.15.1.3 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-40797",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-09T19:34:24.612370Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-09T19:34:32.851Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC PCS neo V4.1",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC PCS neo V5.0",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC PCS neo V6.0",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V6.0 SP1 Update 1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "User Management Component (UMC)",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V2.15.1.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions \u003c V6.0 SP1 Update 1), User Management Component (UMC) (All versions \u003c V2.15.1.3). Affected products contain a out-of-bounds read vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to cause a denial of service condition."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-09T08:46:46.861Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-722410.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2025-40797",
    "datePublished": "2025-09-09T08:48:03.853Z",
    "dateReserved": "2025-04-16T08:50:26.973Z",
    "dateUpdated": "2026-06-09T08:46:46.861Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-2026-24202

CVE-2025-40797 (GCVE-0-2025-40797)

Tags

Sightings

Nomenclature