Vulnerability-Lookup

CNVD-2026-20996

Vulnerability from cnvd - Published: 2026-05-20

Title

Siemens TeleControl Server Basic本地权限提升漏洞

Description

Siemens TeleControl Server Basic是德国西门子（Siemens）公司的一个工业远程控制器。 Siemens TeleControl Server Basic存在本地权限提升漏洞，攻击者可利用该漏洞导致以提升的权限执行任意代码。

Severity

中

Patch Name

Siemens TeleControl Server Basic本地权限提升漏洞的补丁

Patch Description

Siemens TeleControl Server Basic是德国西门子（Siemens）公司的一个工业远程控制器。 Siemens TeleControl Server Basic存在本地权限提升漏洞，攻击者可利用该漏洞导致以提升的权限执行任意代码。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://cert-portal.siemens.com/productcert/html/ssa-192617.html

Reference

https://cert-portal.siemens.com/productcert/html/ssa-192617.html

Impacted products

Name
SIEMENS TeleControl Server Basic <V3.1.2.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-40942",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-40942"
    }
  },
  "description": "Siemens TeleControl Server Basic\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5de5\u4e1a\u8fdc\u7a0b\u63a7\u5236\u5668\u3002\n\nSiemens TeleControl Server Basic\u5b58\u5728\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4ee5\u63d0\u5347\u7684\u6743\u9650\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://cert-portal.siemens.com/productcert/html/ssa-192617.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-20996",
  "openTime": "2026-05-20",
  "patchDescription": "Siemens TeleControl Server Basic\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5de5\u4e1a\u8fdc\u7a0b\u63a7\u5236\u5668\u3002\r\n\r\nSiemens TeleControl Server Basic\u5b58\u5728\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4ee5\u63d0\u5347\u7684\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 TeleControl Server Basic\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "SIEMENS TeleControl Server Basic \u003cV3.1.2.4"
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-192617.html",
  "serverity": "\u4e2d",
  "submitTime": "2026-01-19",
  "title": "Siemens TeleControl Server Basic\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2025-40942 (GCVE-0-2025-40942)

Vulnerability from cvelistv5 – Published: 2026-01-13 09:44 – Updated: 2026-01-13 17:36

Summary

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.4). Affected application contains a local privilege escalation vulnerability that could allow an attacker to run arbitrary code with elevated privileges.

Severity

8.8 (High)


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

7.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-250 - Execution with Unnecessary Privileges

Assigner

siemens

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
Siemens	TeleControl Server Basic	Affected: 0 , < V3.1.2.4 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-40942",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-13T17:32:33.916310Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-13T17:36:00.499Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "TeleControl Server Basic",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.2.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in TeleControl Server Basic (All versions \u003c V3.1.2.4). Affected application contains a local privilege escalation vulnerability that could allow an attacker to run arbitrary code with elevated privileges."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-250",
              "description": "CWE-250: Execution with Unnecessary Privileges",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-13T09:44:04.669Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-192617.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2025-40942",
    "datePublished": "2026-01-13T09:44:04.669Z",
    "dateReserved": "2025-04-16T09:06:15.879Z",
    "dateUpdated": "2026-01-13T17:36:00.499Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2026-20996

CVE-2025-40942 (GCVE-0-2025-40942)

Tags

Sightings

Nomenclature