{"id":"CVE-2023-1083","aliases":["EUVD-2023-23370","GHSA-73qm-xvq7-vqwg"],"status":"published","title":"Welotec: improper access control in TK500v1 router series","description":"An unauthenticated remote attacker who is aware of a MQTT  topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00679,"percentile":0.52615,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284","CWE-306"],"published":"2024-04-09T08:25:46Z","modified":"2026-06-17T05:27:04Z","products":[{"vendor":"welotec","product":"tk515l"},{"vendor":"welotec","product":"tk515l set"},{"vendor":"welotec","product":"tk515l-w"},{"vendor":"welotec","product":"tk515l-w set"},{"vendor":"welotec","product":"tk525l"},{"vendor":"welotec","product":"tk525l set"},{"vendor":"welotec","product":"tk525l-w"},{"vendor":"welotec","product":"tk525l-w set"},{"vendor":"welotec","product":"tk525u"},{"vendor":"welotec","product":"tk525u set"},{"vendor":"welotec","product":"tk525w"},{"vendor":"welotec","product":"tk525w set"},{"vendor":"welotec","product":"tk535l1"},{"vendor":"welotec","product":"tk535l1 set"}],"references":[{"url":"https://cert.vde.com/en/advisories/VDE-2024-009","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-1083"},{"url":"https://github.com/advisories/GHSA-73qm-xvq7-vqwg"}],"sources":{"cve":[{"id":"CVE-2023-1083","title":"Welotec: improper access control in TK500v1 router series","description":"An unauthenticated remote attacker who is aware of a MQTT  topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.","status":"published","published":"2024-04-09T08:25:46.915Z","modified":"2024-10-02T05:26:02.183Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:35:32.019713Z"}],"euvd":[{"id":"EUVD-2023-23370","description":"An unauthenticated remote attacker who is aware of a MQTT  topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.","status":"published","published":"2024-04-09T08:25:46Z","modified":"2024-10-02T05:26:02Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:27:59.473662Z"}],"ghsa":[{"id":"GHSA-73qm-xvq7-vqwg","title":"An unauthenticated remote attacker who is aware of a MQTT  topic name can send and receive...","description":"An unauthenticated remote attacker who is aware of a MQTT  topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.\n","status":"published","published":"2024-04-09T09:31:11Z","modified":"2024-10-02T06:31:32Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-284","CWE-306"],"updated_at":"2026-11-02T14:58:23.554604Z"}],"nvd":[{"id":"CVE-2023-1083","description":"An unauthenticated remote attacker who is aware of a MQTT  topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.","status":"published","published":"2024-04-09T09:15:19.937Z","modified":"2026-06-17T05:27:04.197Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:09:11.362739Z"}]}}