SSA-443410

Vulnerability from csaf_siemens - Published: 2026-10-30 00:00 - Updated: 2026-10-30 00:00
Summary
SSA-443410: Node2Shell Vulnerability in Industrial Edge Management Applications
Notes
Summary: Siemens is currently assessing the impact of Node2Shell (CVE-2026-111497) on Industrial Edge. Please check your Industrial Edge Management (IEM) setup: - No Management Applications installed: No action is required. Although the affected Brotli library is included in the IEM software stack, the affected functionality is not used or exposed. The same applies to IEDK. - Management Applications installed: Follow the specific mitigations until a fix is available. For Siemens-managed services, Industrial Edge Hub and Industrial Edge Management Cloud, appropriate Firewall/WAF protection has already been implemented. Siemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available.
General Recommendations: As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use: The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.

A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.

CWE-787 - Out-of-bounds Write
Affected products
Product Identifier Version Remediation
Cloud Connector Configurator
Siemens / Cloud Connector Configurator
vers:all/*
Mitigation
None Available
Common Configurator (CC on IEM)
Siemens / Common Configurator (CC on IEM)
vers:all/*
Mitigation
None Available
Common Configurator on Device (CC on Edge)
Siemens / Common Configurator on Device (CC on Edge)
vers:all/*
Mitigation
None Available
Data Flow Monitoring
Siemens / Data Flow Monitoring
vers:all/*
Mitigation
None Available
Databus Configurator
Siemens / Databus Configurator
vers:all/*
Mitigation
None Available
Edge OPC UA Server Configurator
Siemens / Edge OPC UA Server Configurator
vers:all/*
Mitigation
None Available
Flow Creator Configurator
Siemens / Flow Creator Configurator
vers:all/*
Mitigation
None Available
Industrial Edge Hub
Siemens / Industrial Edge Hub
vers:all/*
Vendor Fix
Industrial Edge Management Cloud
Siemens / Industrial Edge Management Cloud
vers:all/*
Vendor Fix

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      {
        "category": "summary",
        "text": "Siemens is currently assessing the impact of Node2Shell (CVE-2026-111497) on Industrial Edge. Please check your Industrial Edge Management (IEM) setup:\n\n- No Management Applications installed: No action is required. Although the affected Brotli library is included in the IEM software stack, the affected functionality is not used or exposed. The same applies to IEDK.\n- Management Applications installed: Follow the specific mitigations until a fix is available.\n\nFor Siemens-managed services, Industrial Edge Hub and Industrial Edge Management Cloud, appropriate Firewall/WAF protection has already been implemented.\n\nSiemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
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    "title": "SSA-443410: Node2Shell Vulnerability in Industrial Edge Management Applications",
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-111497",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "description",
          "text": "A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream.\r\n\r\n\r\n\r\n\r\n\r\nUsers need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
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          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9"
        ]
      },
      "remediations": [
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          "details": "Stop Common Configurator on Device (CC on Edge) until a fix is available",
          "product_ids": [
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          ]
        },
        {
          "category": "mitigation",
          "details": "Stop Data Flow Monitoring until a fix is available",
          "product_ids": [
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        },
        {
          "category": "mitigation",
          "details": "Uninstall all Management Applications and protect your IEM instance with a Firewall/WAF until a fix is available",
          "product_ids": [
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            "2",
            "5",
            "6",
            "7"
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        {
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            "2",
            "3",
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            "5",
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        {
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          "product_ids": [
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          "details": "Vulnerability fixed on central cloud service starting 2026-10-28; no user actions necessary",
          "product_ids": [
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      ],
      "scores": [
        {
          "cvss_v3": {
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            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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            "8",
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          ]
        }
      ],
      "title": "CVE-2026-111497"
    }
  ]
}



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