{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76653","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","state":"PUBLISHED","assignerShortName":"TPLink","dateReserved":"2026-08-19T15:49:30.548Z","datePublished":"2026-09-10T20:12:43.207Z","dateUpdated":"2026-09-10T20:27:18.091Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink","dateUpdated":"2026-09-10T20:12:43.207Z"},"title":"Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-126","description":"CWE-126","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-126","descriptions":[{"lang":"en","value":"CAPEC-126 Path Traversal"}]}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"TL-MR6400 v8","platforms":["Linux"],"versions":[{"status":"affected","version":"0","lessThan":"1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"Archer MR600","platforms":["Linux"],"versions":[{"status":"affected","version":"v3","lessThan":"MR600(EU)_V3_1.4.0 Build 260827","versionType":"custom"},{"status":"affected","version":"v2","lessThan":"MR600(EU)_V2_1.12.0 Build 2600826","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p><span>A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified&nbsp;</span><span>in Archer MR600 (v2, v3 &amp; v5) and TL-MR6400 v8</span><span>&nbsp;</span><span>due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.</span></p><p>\n\n</p><p>Successful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.</p>"}]}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5292/","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":"LOW","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:L/VA:N/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T20:27:12.333163Z","id":"CVE-2026-76653","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-10T20:27:18.091Z"}}]}}