CVE-2026-51770

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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.."}], "id": "CVE-2026-51770", "lastModified": "2026-09-02T18:19:59.507", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-51770", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-02T17:49:14.988965Z", "version": "2.0.3"}}]}, "published": "2026-09-01T16:17:05.177", "references": [{"source": "cve@mitre.org", "url": "https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md"}, {"source": "cve@mitre.org", "url": "https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md"}, {"source": "cve@mitre.org", "url": "https://www.totolink.net/"}, {"source": "cve@mitre.org", "url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.1.5cu.748_B20211015"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "t6", "vendor": "totolink"}], "created": "2026-09-02T01:15:05.102515+00:00", "updated": "2026-09-03T14:00:04.985681+00:00", "vendors": ["totolink", "totolink$PRODUCT$t6"], "weaknesses": ["CWE-284", "CWE-285"]}