{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "ABB is aware of vulnerabilities in the product versions listed as affected in the advisory.\nAn attacker who successfully exploited this vulnerability could gain physical, unauthorized access to a \nBuilding where the product is installed",
        "title": "summary"
      },
      {
        "category": "other",
        "text": "For any installation of software-related ABB products we strongly recommend the following (non-exhaustive) list of cyber security practices:\n\n\u2013\tIsolate special purpose networks (e.g. for automation systems) and remote devices behind firewalls and separate them from any general purpose network (e.g. office or home networks).\n\n\u2013\tInstall physical controls so no unauthorized personnel can access your devices, components, peripheral equipment, and networks.\n\n\u2013\tNever connect programming software or computers containing programing software to any network other than the network for the devices that it is intended for.\n\n\u2013\tScan all data imported into your environment before use to detect potential malware infections.\n\n\u2013\tMinimize network exposure for all applications and endpoints to ensure that they are not accessible from the Internet unless they are designed for such exposure and the intended use requires such.\n\n\u2013\tEnsure all nodes are always up to date in terms of installed software, operating system and firmware patches as well as anti-virus and firewall.\n\n\u2013\tWhen remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.\n",
        "title": "General security recommendations"
      },
      {
        "category": "other",
        "text": "For additional instructions and support please contact your local ABB service organization. \nFor contact \ninformation, see www.abb.com/contactcenters.\n\nInformation about ABB\u2019s cyber security program and capabilities can be found at www.abb.com/cybersecurity.\n",
        "title": "support"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information in this document is subject to change without notice, and should not be construed as a commitment by ABB.\n\nABB provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall ABB or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hard-ware or software described in this document, even if ABB or its suppliers have been advised of the possibility of such damages.\n\nThis document and parts hereof must not be reproduced or copied without written permission from ABB, and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose.\n\nAll rights to registrations and trademarks reside with their respective owners.\n",
        "title": "Notice"
      },
      {
        "category": "general",
        "text": "ABB recommends double check the system handbook of a Busch-Welcome\u00ae two wire system regarding \nsecurity advises for the correct installation.",
        "title": "Mitigating factors"
      }
    ],
    "publisher": {
      "category": "vendor",
      "name": "ABB PSIRT",
      "namespace": "https://global.abb/group/en/technology/cyber-security/alerts-and-notifications"
    },
    "references": [
      {
        "category": "self",
        "summary": "ABB CYBERSECURITY ADVISORY - PDF version ",
        "url": "https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A4556\u0026LanguageCode=en\u0026DocumentPartId=pdf\u0026Action=Launch"
      },
      {
        "summary": "Guide for network security in building systems control",
        "url": "https://www.busch-jaeger.de/media/download/Broschueren/en/ABB_Smart_Home_Security_2017.pdf"
      },
      {
        "category": "self",
        "summary": "ABB CYBERSECURITY ADVISORY - CSAF version ",
        "url": "https://psirt.abb.com/csaf/2025/9akk108471a4556.json"
      }
    ],
    "title": "Busch-Welcome\u00ae 2 wire Door opener actuator by default in compatibility mode.",
    "tracking": {
      "current_release_date": "2025-07-21T00:30:00.000Z",
      "generator": {
        "date": "2025-09-23T12:33:29.726Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.35"
        }
      },
      "id": "9AKK108471A4556",
      "initial_release_date": "2025-07-21T00:30:00.000Z",
      "revision_history": [
        {
          "date": "2025-07-21T00:30:00.000Z",
          "legacy_version": "A",
          "number": "1",
          "summary": "Initial version."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "vers:all/*",
                "product": {
                  "name": "Switch Actuator 4 DU -83330 - All Versions",
                  "product_id": "AV1"
                }
              }
            ],
            "category": "product_name",
            "name": "Switch Actuator 4 DU"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Switch actuator, door/light 4 DU -83330-500 - All Versions",
                  "product_id": "AV2"
                }
              }
            ],
            "category": "product_name",
            "name": "Switch actuator, door/light 4 DU"
          }
        ],
        "category": "vendor",
        "name": "ABB"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-7705",
      "cwe": {
        "id": "CWE-489",
        "name": "Active Debug Code"
      },
      "notes": [
        {
          "category": "description",
          "text": "Authentication bypass due to compatibility mode enabled by default",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "known_affected": [
          "AV1",
          "AV2"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "NVD -CVE-2025-7705",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7705"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "The following actions need to be executed on premise where the respective Busch-Welcome\u00ae System is  installed:\n\n\u2022 While the Busch-Welcome\u00ae System is in operation, toggle the mode switch on the product from \n\u201cDoor-Open\u201d - to \u201cLight\u201d \u2013 Mode, wait one second and switch back to \u201cDoor-Open\u201d - Mode.\n\n\n\u2022 Restart the Busch-Welcome\u00ae System with a Power reset (mains power off and on again).\nBy executing the above steps, the system will recalibrate itself during boot up and will correct the misconfiguration automatically.\n\n\nABB recommends that customers apply the above listed actions at the earliest convenience.",
          "product_ids": [
            "AV1",
            "AV2"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 6.8,
            "environmentalSeverity": "MEDIUM",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 6.8,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AV1",
            "AV2"
          ]
        }
      ],
      "title": "CVE-2025-7705"
    }
  ]
}