{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Mayeul Fargier",
          "Erwan Cordier",
          "No\u00e9 Flatreaud"
        ],
        "summary": "reported this vulnerability to Mitsubishi Electric"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.cisa.gov/news-events/news/traffic-light-protocol-tlp-definitions-and-usage"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "summary",
        "text": "Successful exploitation of this vulnerability could allow a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modify part of the executable module in memory, and thereby allows the attacker to view, tamper with, destroy, or delete control programs.",
        "title": "Advisory Summary"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Japan",
        "title": "Company headquarters location"
      },
      {
        "category": "legal_disclaimer",
        "text": "This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy \u0026 Use policy (https://www.cisa.gov/privacy-policy).",
        "title": "Legal Notice and Terms of Use"
      },
      {
        "category": "other",
        "text": "This ICSA is a verbatim republication of Mitsubishi Electric 2026-007 from a direct conversion of the vendor\u0027s Common Security Advisory Framework (CSAF) advisory. This is republished to CISA\u0027s website as a means of increasing visibility and is provided \"as-is\" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory.  Further, CISA does not endorse any commercial product or service.  Please contact Mitsubishi Electric directly for any questions regarding this advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-26-260-02 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-260-02.json"
      },
      {
        "category": "self",
        "summary": "Mitsubishi Electric Advisory 2026-007",
        "url": "https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-26-260-02 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-02"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b"
      }
    ],
    "title": "Mitsubishi Electric GX Works3 and Motion Control Settings",
    "tracking": {
      "current_release_date": "2026-09-17T06:00:00.000000Z",
      "generator": {
        "date": "2026-09-15T14:28:34.771570Z",
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.5.0"
        }
      },
      "id": "ICSA-26-260-02",
      "initial_release_date": "2026-09-17T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2026-09-17T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Initial Publication"
        },
        {
          "date": "2026-09-17T06:00:00.000000Z",
          "legacy_version": "CISA Republication",
          "number": "2",
          "summary": "Initial CISA Republication of Mitsubishi Electric 2026-007 advisory"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Mitsubishi Electric GX Works3: vers:all/*",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "Mitsubishi Electric GX Works3"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Mitsubishi Electric Motion Control Settings (Software packaged with GX Works3): vers:all/*",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Mitsubishi Electric Motion Control Settings (Software packaged with GX Works3)"
          }
        ],
        "category": "vendor",
        "name": "Mitsubishi Electric"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-15688",
      "cwe": {
        "id": "CWE-303",
        "name": "Incorrect Implementation of Authentication Algorithm"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Incorrect Implementation of Authentication Algorithm (CWE-303) vulnerability in the affected products allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modify part of the executable module in memory, and thereby allows the attacker to view, tamper with, destroy, or delete control programs.",
          "title": "Vulnerability Summary"
        },
        {
          "category": "details",
          "text": "SSVCv2/E:N/A:N/T:P/2026-09-17T00:00:00.000Z/",
          "title": "SSVC"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-15688"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:H/SA:H"
        },
        {
          "category": "external",
          "summary": "www.mitre.org",
          "url": "https://cwe.mitre.org/data/definitions/303.html"
        }
      ],
      "remediations": [
        {
          "category": "workaround",
          "details": "For customers using GX Works3, please download version 1.096A or later from the link https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software\u0026kisyu=/plceng\u0026shiryoid=1000001411\u0026lang=2\u0026select=0\u0026softid=1\u0026infostatus=1_2_1\u0026viewradio=0\u0026viewstatus=\u0026viewpos=, install it, and set the security version for projects to \"2\". Please refer to \u201c15.9 Preventing Illegal Access to/Falsification of Data (Security Version)\u201d in \u201cGX Works3 Operating Manual\u201d for details. For more information about the workaround, refer to the Mitsubishi Electric security advisory available at \"https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf\".",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software\u0026kisyu=/plceng\u0026shiryoid=1000001411\u0026lang=2\u0026select=0\u0026softid=1\u0026infostatus=1_2_1\u0026viewradio=0\u0026viewstatus=\u0026viewpos="
        },
        {
          "category": "workaround",
          "details": "For customers using Motion Control Settings (Software packaged with GX Works3), Please download version 1.070Y or later from the link \"https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software\u0026kisyu=/ssc\u0026shiryoid=1000000803\u0026lang=2\u0026select=0\u0026softid=1\u0026infostatus=1_8_1\u0026viewradio=0\u0026viewstatus=\u0026viewpos=\", install it, and set the security version for projects to \"2\". Please refer to \u201c12.5 Preventing Illegal Access to/Falsification of Data (Security Version)\u201d in \u201cMotion Control Setting Function Help\u201d for details. For more information about the workaround, refer to the Mitsubishi Electric security advisory at \"https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf\".",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software\u0026kisyu=/ssc\u0026shiryoid=1000000803\u0026lang=2\u0026select=0\u0026softid=1\u0026infostatus=1_8_1\u0026viewradio=0\u0026viewstatus=\u0026viewpos="
        },
        {
          "category": "mitigation",
          "details": "For customers of the affected products, Mitsubishi Electric recommends using a computer with the affected product within a LAN and blocking remote logins from untrusted networks, hosts, and users, to minimize the risk of exploiting this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "For customers of the affected products, Mitsubishi Electric recommends using a firewall, virtual private network (VPN), etc., to prevent unauthorized access, and allowing remote login only to trusted users when connecting a computer with the affected product to the Internet, to minimize the risk of exploiting this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "For customers of the affected products, Mitsubishi Electric recommends preventing the user from clicking on web links contained in emails or other messages from untrusted sources, or from opening attachments in untrusted emails, to minimize the risk of exploiting this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "For customers of the affected products, Mitsubishi Electric recommends installing antivirus software on a computer running the affected product, to minimize the risk of exploiting this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "For customers of the affected products, Mitsubishi Electric recommends restricting physical access to a computer on which the affected product is installed, as well as to computers and network devices that can communicate with it, to minimize the risk of exploiting this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "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"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ]
    }
  ]
}