{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "ABB is aware of publicly disclosed security vulnerabilities affecting the WIBU-Systems CodeMeter Runtime for Windows, identified as CVE-2026-81572, CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576. The CodeMeter Runtime component is used within affected ABB zenon Software Platform installations for software licensing and license server functionality. Successful exploitation of the reported vulnerabilities could enable local privilege escalation on Windows systems and impact systems configured as CodeMeter license servers, potentially leading to unauthorized access, service disruption, or loss of system integrity. Refer to the WIBU-Systems advisory for detailed technical information on each vulnerability. Please see the References section for the WIBU-Systems security advisory.",
        "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–\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–\tInstall physical controls so no unauthorized personnel can access your devices, components, peripheral equipment, and networks.\n\n–\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–\tScan all data imported into your environment before use to detect potential malware infections.\n\n–\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–\tEnsure all nodes are always up to date in terms of installed software, operating system, and firmware patches as well as antivirus and firewall.\n\n–\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.",
        "title": "General security recommendations"
      },
      {
        "category": "other",
        "text": "For additional instructions and support please contact your local ABB service organization. For contact information, see www.abb.com/contactcenters.\n\nInformation about ABB’s cyber security program and capabilities can be found at www.abb.com/cybersecurity.",
        "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 hardware 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.",
        "title": "Notice"
      },
      {
        "category": "other",
        "text": "ABB has a rigorous internal cyber security continuous improvement process which involves regular testing with industry leading tools and periodic assessments to identify potential product issues. Occasionally an issue is determined to be a design or coding flaw with implications that may impact product cyber security.\n\nWhen a potential product vulnerability is identified or reported, ABB immediately initiates our vulnerability handling process. This entails validating if the issue is in fact a product issue, identifying root causes, determining what related products may be impacted, developing a remediation, and notifying end users and governmental organizations.\n\nThe resulting Cyber Security Advisory intends to notify customers of the vulnerability and provide details on which products are impacted, how to mitigate the vulnerability or explain workarounds that minimize the potential risk as much as possible. The release of a Cyber Security Advisory should not be misconstrued as an affirmation or indication of an active threat or ongoing campaign targeting the products mentioned here. If ABB is aware of any specific threats, it will be clearly mentioned in the communication.\n\nThe publication of this Cyber Security Advisory is an example of ABB’s commitment to the user community in support of this critical topic. Responsible disclosure is an important element in the chain of trust we work to maintain with our many customers. The release of an Advisory provides timely information which is essential to help ensure our customers are fully informed.\n",
        "title": "Purpose"
      },
      {
        "category": "faq",
        "text": "What causes the vulnerability?\n - The vulnerability is caused by security flaws in WIBU-Systems CodeMeter Runtime versions prior to 8.41a, affecting both local privilege management and network server functionality. \n\nWhat might an attacker use the vulnerability to do?\n - An attacker could exploit these vulnerabilities to gain elevated privileges on an affected Windows system, access or modify sensitive configuration and licensing information, disrupt CodeMeter services, or affect the availability and integrity of the affected system. The impact depends on the specific vulnerability and system configuration.\n\nHow could an attacker exploit the vulnerability?\n - An attacker could exploit the vulnerabilities through local access to an affected system or, if CodeMeter Runtime is configured as a server, by sending specially crafted requests to the service.\n\nCould the vulnerability be exploited remotely? \n - Partially. The vulnerabilities covered by CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576 can be exploited remotely if the CodeMeter Runtime is configured as a network server. However, CVE-2026-81572 requires local access to the affected Windows system.\n\nCan functional safety be affected by an exploit of this vulnerability?\n - No direct impact on functional safety is known. Successful exploitation of these vulnerabilities could affect the confidentiality, integrity, or availability of the CodeMeter Runtime licensing service; however, there is no indication that the vulnerabilities directly impact the functional safety features of ABB zenon\n\nWhat does the update do?\n - The update upgrades the WIBU-Systems CodeMeter Runtime to a fixed version (8.41a or later) that addresses the vulnerabilities described in CVE-2026-81572, CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576.\n\nWhen this security advisory was issued, had this vulnerability been publicly disclosed?\n - Yes, the CVEs are publicly disclosed.\n\nWhen this security advisory was issued, had ABB received any reports that this vulnerability was being exploited?\n - No, ABB had not received any information indicating that this vulnerability had been exploited when this security advisory was originally issued.",
        "title": "Frequently asked questions"
      }
    ],
    "publisher": {
      "category": "vendor",
      "name": "ABB PSIRT",
      "namespace": "https://www.abb.com/global/en/company/about/cybersecurity/alerts-and-notifications"
    },
    "references": [
      {
        "category": "self",
        "summary": "ABB CYBERSECURITY ADVISORY - PDF version ",
        "url": "https://search.abb.com/library/Download.aspx?DocumentID=2NGA003144&LanguageCode=en&DocumentPartId=&Action=Launch"
      },
      {
        "category": "self",
        "summary": "ABB CYBERSECURITY ADVISORY - CSAF version ",
        "url": "https://psirt.abb.com/csaf/2026/2nga003144.json"
      },
      {
        "summary": "Security Advisories - Wibu-Systems ",
        "url": "https://www.wibu.com/de/support/security-advisories.html?utm_campaign=9306171-Security%20Newsletter&utm_medium=email&_hsenc=p2ANqtz-8PwlMxVWC-8Brkx3tA3UNUOpOrPpAiLTp_b7zRlKBt24OJ8bKZEY30o2Pmr5BRvIk1UBizOL2pPLchFcu1TfeXLbvthpgHV3mSw0Xehq55-0Qn8Ko&_hsmi=432047421&utm_content=432047421&utm_source=hs_email"
      },
      {
        "summary": "User Software - Wibu-Systems ",
        "url": "https://www.wibu.com/support/user/user-software.html"
      }
    ],
    "title": "ABB AbilityTM zenon Security Risk Due to High-Severity Vulnerabilities in WIBU CodeMeter Runtime",
    "tracking": {
      "current_release_date": "2026-09-09T00:30:00.000Z",
      "generator": {
        "date": "2026-09-09T08:30:37.977Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.6.11"
        }
      },
      "id": "2NGA003144",
      "initial_release_date": "2026-09-09T00:30:00.000Z",
      "revision_history": [
        {
          "date": "2026-09-09T00:30:00.000Z",
          "legacy_version": "A",
          "number": "1",
          "summary": "Initial version."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<=14",
                "product": {
                  "name": "ABB AbilityTM zenon <=14",
                  "product_id": "AV1"
                }
              }
            ],
            "category": "product_name",
            "name": "AbilityTM zenon"
          }
        ],
        "category": "vendor",
        "name": "ABB"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<8.41a",
                "product": {
                  "name": "WIBU-Systems CodeMeter Runtime <8.41a",
                  "product_id": "EAV1"
                }
              }
            ],
            "category": "product_name",
            "name": "CodeMeter Runtime"
          }
        ],
        "category": "vendor",
        "name": "WIBU-Systems"
      }
    ],
    "relationships": [
      {
        "category": "installed_with",
        "full_product_name": {
          "name": "WIBU-Systems CodeMeter Runtime <8.41a installed with ABB AbilityTM zenon <=14",
          "product_id": "RAV1"
        },
        "product_reference": "EAV1",
        "relates_to_product_reference": "AV1"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-81572",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access ('Link Following')"
      },
      "notes": [
        {
          "category": "description",
          "text": "In CodeMeter Runtime from version 8.40 to (excluding) 8.41a and 9.00 to (excluding) 9.10, cmu.exe --create-io --file C: creates a predictable temporary file under C:\\CM-Stick. The directory and file paths are not properly checked for NTFS reparse points, such as junctions or symbolic links, before file operations are performed. A local attacker can create a junction at the temporary file that points to an arbitrary system path. Because CodeMeter Runtime runs with System privileges, this could allow arbitrary files to be deleted with System privileges and potentially enable local privilege escalation.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "known_affected": [
          "RAV1"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "NVD -CVE-2026-81572",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81572"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "ABB recommends the following mitigation measures:\n- Update the WIBU-Systems CodeMeter Runtime to version 8.41a or later.\n- The latest CodeMeter Runtime software is available from the WIBU-Systems download page: User Software - Wibu-Systems, please see the References section for the corresponding link.\n- Where upgrading is not feasible, ABB recommends that asset owners perform a risk assessment and implement compensating controls such as network isolation, access restrictions, and enhanced monitoring of affected systems.\n\nABB recommends that customers apply the update at earliest convenience.\n\nThe vulnerabilities associated with CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576 are exploitable only when the WIBU-Systems CodeMeter Runtime is configured as a network server, which is not the de-fault configuration. The CVE-2026-81572 vulnerability requires local access to the affected Windows system and execution by a low-privileged user. Consequently, systems with restricted local access, proper privilege management, and limited network exposure are less likely to be successfully compromised.\n\nRefer to section “General security recommendations” for further advise on how to keep your system secure.\n",
          "product_ids": [
            "RAV1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.8,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.8,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/RC:C",
            "version": "3.1"
          },
          "products": [
            "RAV1"
          ]
        }
      ],
      "title": "CVE-2026-81572"
    },
    {
      "cve": "CVE-2026-81573",
      "cwe": {
        "id": "CWE-862",
        "name": "Missing Authorization"
      },
      "notes": [
        {
          "category": "description",
          "text": "If CodeMeter Runtime before 8.41a or 9.10 is configured as a server, the configuration command handler does not enforce network- origin restrictions. Commands intended only for local or same-network clients can therefore be executed by arbitrary remote peers. An attacker can read potentially sensitive configuration data and overwrite selected values in Server.ini. This does include the hash of the credentials for the CodeMeter WebAdmin, enabling WebAdmin takeover.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "known_affected": [
          "RAV1"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "NVD -CVE-2026-81573",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81573"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "ABB recommends the following mitigation measures:\n- Update the WIBU-Systems CodeMeter Runtime to version 8.41a or later.\n- The latest CodeMeter Runtime software is available from the WIBU-Systems download page: User Software - Wibu-Systems, please see the References section for the corresponding link.\n- Where upgrading is not feasible, ABB recommends that asset owners perform a risk assessment and implement compensating controls such as network isolation, access restrictions, and enhanced monitoring of affected systems.\n\nABB recommends that customers apply the update at earliest convenience.\n\nThe vulnerabilities associated with CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576 are exploitable only when the WIBU-Systems CodeMeter Runtime is configured as a network server, which is not the de-fault configuration. The CVE-2026-81572 vulnerability requires local access to the affected Windows system and execution by a low-privileged user. Consequently, systems with restricted local access, proper privilege management, and limited network exposure are less likely to be successfully compromised.\n\nRefer to section “General security recommendations” for further advise on how to keep your system secure.\n",
          "product_ids": [
            "RAV1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "environmentalScore": 8.6,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 8.6,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L/RC:C",
            "version": "3.1"
          },
          "products": [
            "RAV1"
          ]
        }
      ],
      "title": "CVE-2026-81573"
    },
    {
      "cve": "CVE-2026-81574",
      "cwe": {
        "id": "CWE-134",
        "name": "Use of Externally-Controlled Format String"
      },
      "notes": [
        {
          "category": "description",
          "text": "In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format specifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory and stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and remotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this vulnerability.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "known_affected": [
          "RAV1"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "NVD -CVE-2026-81574",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81574"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "ABB recommends the following mitigation measures:\n- Update the WIBU-Systems CodeMeter Runtime to version 8.41a or later.\n- The latest CodeMeter Runtime software is available from the WIBU-Systems download page: User Software - Wibu-Systems, please see the References section for the corresponding link.\n- Where upgrading is not feasible, ABB recommends that asset owners perform a risk assessment and implement compensating controls such as network isolation, access restrictions, and enhanced monitoring of affected systems.\n\nABB recommends that customers apply the update at earliest convenience.\n\nThe vulnerabilities associated with CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576 are exploitable only when the WIBU-Systems CodeMeter Runtime is configured as a network server, which is not the de-fault configuration. The CVE-2026-81572 vulnerability requires local access to the affected Windows system and execution by a low-privileged user. Consequently, systems with restricted local access, proper privilege management, and limited network exposure are less likely to be successfully compromised.\n\nRefer to section “General security recommendations” for further advise on how to keep your system secure.\n",
          "product_ids": [
            "RAV1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "environmentalScore": 8.2,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 8.2,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/RC:C",
            "version": "3.1"
          },
          "products": [
            "RAV1"
          ]
        }
      ],
      "title": "CVE-2026-81574"
    },
    {
      "cve": "CVE-2026-81575",
      "cwe": {
        "id": "CWE-130",
        "name": "Improper Handling of Length Parameter Inconsistency"
      },
      "notes": [
        {
          "category": "description",
          "text": "If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 accepts requests with opcode 0x5e, which contain the data length and the data itself. Missing bounds checking on the data length value can lead to out of bounds reads, causing a segmentation fault that ultimately crashes the CodeMeter Runtime.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "known_affected": [
          "RAV1"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "NVD -CVE-2026-81575",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81575"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "ABB recommends the following mitigation measures:\n- Update the WIBU-Systems CodeMeter Runtime to version 8.41a or later.\n- The latest CodeMeter Runtime software is available from the WIBU-Systems download page: User Software - Wibu-Systems, please see the References section for the corresponding link.\n- Where upgrading is not feasible, ABB recommends that asset owners perform a risk assessment and implement compensating controls such as network isolation, access restrictions, and enhanced monitoring of affected systems.\n\nABB recommends that customers apply the update at earliest convenience.\n\nThe vulnerabilities associated with CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576 are exploitable only when the WIBU-Systems CodeMeter Runtime is configured as a network server, which is not the de-fault configuration. The CVE-2026-81572 vulnerability requires local access to the affected Windows system and execution by a low-privileged user. Consequently, systems with restricted local access, proper privilege management, and limited network exposure are less likely to be successfully compromised.\n\nRefer to section “General security recommendations” for further advise on how to keep your system secure.\n",
          "product_ids": [
            "RAV1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RC:C",
            "version": "3.1"
          },
          "products": [
            "RAV1"
          ]
        }
      ],
      "title": "CVE-2026-81575"
    },
    {
      "cve": "CVE-2026-81576",
      "cwe": {
        "id": "CWE-639",
        "name": "Authorization Bypass Through User-Controlled Key"
      },
      "notes": [
        {
          "category": "description",
          "text": "If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 issues handles per connection and relies on a cryptographically weak SID as sole authenticator. An attacker can brute-force the SID, recover another session's handle number, and read license information belonging to another handle.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "known_affected": [
          "RAV1"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "NVD -CVE-2026-81576",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81576"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "ABB recommends the following mitigation measures:\n- Update the WIBU-Systems CodeMeter Runtime to version 8.41a or later.\n- The latest CodeMeter Runtime software is available from the WIBU-Systems download page: User Software - Wibu-Systems, please see the References section for the corresponding link.\n- Where upgrading is not feasible, ABB recommends that asset owners perform a risk assessment and implement compensating controls such as network isolation, access restrictions, and enhanced monitoring of affected systems.\n\nABB recommends that customers apply the update at earliest convenience.\n\nThe vulnerabilities associated with CVE-2026-81573, CVE-2026-81574, CVE-2026-81575 and CVE-2026-81576 are exploitable only when the WIBU-Systems CodeMeter Runtime is configured as a network server, which is not the de-fault configuration. The CVE-2026-81572 vulnerability requires local access to the affected Windows system and execution by a low-privileged user. Consequently, systems with restricted local access, proper privilege management, and limited network exposure are less likely to be successfully compromised.\n\nRefer to section “General security recommendations” for further advise on how to keep your system secure.\n",
          "product_ids": [
            "RAV1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.7,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "reportConfidence": "CONFIRMED",
            "scope": "CHANGED",
            "temporalScore": 7.7,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/RC:C",
            "version": "3.1"
          },
          "products": [
            "RAV1"
          ]
        }
      ],
      "title": "CVE-2026-81576"
    }
  ]
}