{"id":"CVE-2026-78577","state":"PUBLISHED","title":"Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200","description":"Tapo C120 v1 and C200 V5\ncontain a vulnerability in the HTTPS onboarding scan function due to missing authentication.\nAfter initial setup, an unauthenticated attacker on the same local network can\ninvoke the scan action and retrieve nearby wireless access-point metadata,\nincluding SSIDs, BSSIDs, authentication and encryption modes, and\nsignal-strength information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may disclose information about the wireless environment\nsurrounding the camera, allowing an attacker to learn elements of the local\nwireless topology.","publishedAt":"2026-10-01T17:41:49.774Z","updatedAt":"2026-10-01T18:08:59.956Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","source":"TPLink"},"assigner":"TPLink","products":["TP-Link Systems Inc. Tapo C200 v5","TP-Link Systems Inc. Tapo C120 v1"],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Tapo C200 v5","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V5_1.4.6 Build 260709 Rel.27675n","versionType":"custom"}]},{"vendor":"TP-Link Systems Inc.","product":"Tapo C120 v1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V1_1.9.4 Build 260813 Rel.79754n","versionType":"custom"}]}],"references":["https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes","https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes","https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes","https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes","https://www.tp-link.com/us/support/faq/5321/"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/78xxx/CVE-2026-78577.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-78577","state":"PUBLISHED","datePublished":"2026-10-01T17:41:49.774Z","dateUpdated":"2026-10-01T18:08:59.956Z","assignerShortName":"TPLink","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateReserved":"2026-08-24T20:46:18.534Z"},"containers":{"cna":{"title":"Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200","descriptions":[{"lang":"en","value":"Tapo C120 v1 and C200 V5\ncontain a vulnerability in the HTTPS onboarding scan function due to missing authentication.\nAfter initial setup, an unauthenticated attacker on the same local network can\ninvoke the scan action and retrieve nearby wireless access-point metadata,\nincluding SSIDs, BSSIDs, authentication and encryption modes, and\nsignal-strength information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may disclose information about the wireless environment\nsurrounding the camera, allowing an attacker to learn elements of the local\nwireless topology."}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Tapo C200 v5","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V5_1.4.6 Build 260709 Rel.27675n","versionType":"custom"}]},{"vendor":"TP-Link Systems Inc.","product":"Tapo C120 v1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V1_1.9.4 Build 260813 Rel.79754n","versionType":"custom"}]}],"references":[{"url":"https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5321/","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306 Missing authentication for critical function","type":"CWE"}]}],"providerMetadata":{"shortName":"TPLink","orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateUpdated":"2026-10-01T17:41:49.774Z"},"impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}],"credits":[{"lang":"en","value":"Thai Do (Lio) and Khoi Tran (KayTii) from OPSWAT","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T18:08:50.711151Z","id":"CVE-2026-78577","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T18:08:59.956Z"}}]}}}