{"id":"CVE-2026-51770","aliases":["EUVD-2026-69380","GHSA-c6w3-3vcp-m3h3"],"status":"published","title":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu...","description":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the cs_broker component..","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":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00641,"percentile":0.51166,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2026-09-01T00:00:00Z","modified":"2026-09-02T18:32:02Z","references":[{"url":"https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html"},{"url":"https://www.totolink.net/"},{"url":"https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md"},{"url":"https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-51770"},{"url":"https://www.totolink.net"},{"url":"https://github.com/advisories/GHSA-c6w3-3vcp-m3h3"}],"sources":{"cve":[{"id":"CVE-2026-51770","description":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the cs_broker component..","status":"published","published":"2026-09-01T00:00:00Z","modified":"2026-09-02T17:50:14.663Z","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":"adp"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T13:39:50.160666Z"}],"euvd":[{"id":"EUVD-2026-69380","description":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the cs_broker component..","status":"published","published":"2026-09-01T00:00:00Z","modified":"2026-09-02T17:50:14Z","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":"2026-11-02T18:01:15.092584Z"}],"ghsa":[{"id":"GHSA-c6w3-3vcp-m3h3","title":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu...","description":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the cs_broker component..","status":"published","published":"2026-09-01T18:30:41Z","modified":"2026-09-02T18:32:02Z","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"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:11:17.291346Z"}],"nvd":[{"id":"CVE-2026-51770","description":"Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the cs_broker component..","status":"published","published":"2026-09-01T16:17:05.177Z","modified":"2026-09-02T18:19:59.507Z","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-284"],"updated_at":"2026-11-02T14:12:43.04945Z"}]}}