{"id":"CVE-2026-15688","aliases":["EUVD-2026-81400","GHSA-x4hf-m6gp-2m3x"],"status":"published","title":"Password Authentication Bypass Vulnerability in GX Works3 and Motion Control Setting","description":"Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.","severity":{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00179,"percentile":0.07588,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-303"],"published":"2026-09-17T08:15:27Z","modified":"2026-10-09T03:32:13Z","products":[{"vendor":"mitsubishi electric","product":"motion control setting"},{"vendor":"mitsubishi electric corporation","product":"gx works3"},{"vendor":"mitsubishi electric corporation","product":"motion control setting"}],"references":[{"url":"https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf","tags":["vendor-advisory"]},{"url":"https://jvn.jp/vu/JVNVU99700314","tags":["government-resource"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-02","tags":["government-resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15688"},{"url":"https://github.com/advisories/GHSA-x4hf-m6gp-2m3x"}],"sources":{"cve":[{"id":"CVE-2026-15688","title":"Password Authentication Bypass Vulnerability in GX Works3 and Motion Control Setting","description":"Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.","status":"published","published":"2026-09-17T08:15:27.769Z","modified":"2026-10-09T00:45:51.747Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-81400","description":"Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.","status":"published","published":"2026-09-17T08:15:27Z","modified":"2026-10-09T00:45:51Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T17:27:25.942984Z"}],"ghsa":[{"id":"GHSA-x4hf-m6gp-2m3x","title":"Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX...","description":"Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.","status":"published","published":"2026-09-17T09:33:01Z","modified":"2026-10-09T03:32:13Z","cvss":[{"version":"4.0","score":9.2,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T15:12:59.985635Z"}],"nvd":[{"id":"CVE-2026-15688","description":"Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.","status":"published","published":"2026-09-17T09:16:39.24Z","modified":"2026-10-09T02:17:02.677Z","cvss":[{"version":"4.0","score":9.2,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:12:49.013904Z"}]}}