An\nauthentication weakness exists in the TP-Link TDDP v2 service of TP-Link RE305\nV3. TDDP v2 uses a fixed and derivable cryptographic key, which may allow an\nunauthenticated attacker on the same local network to forge protocol packets\nand access privileged TDDP operations, including functionality that can lead to\noperating-system command execution when the TDDP service is running and\naccessible.
\n\n
Successful\nexploitation may allow an unauthenticated attacker on the same local area\nnetwork to execute arbitrary system commands with root privileges.
"}],"value":"An\nauthentication weakness exists in the TP-Link TDDP v2 service of TP-Link RE305\nV3. TDDP v2 uses a fixed and derivable cryptographic key, which may allow an\nunauthenticated attacker on the same local network to forge protocol packets\nand access privileged TDDP operations, including functionality that can lead to\noperating-system command execution when the TDDP service is running and\naccessible.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated attacker on the same local area\nnetwork to execute arbitrary system commands with root privileges."}],"impacts":[{"capecId":"CAPEC-88","descriptions":[{"lang":"en","value":"CAPEC-88 OS Command Injection"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-27T17:40:43.627Z","orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink"},"references":[{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/re305/v3/#Firmware"},{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/re305/v3/#Firmware"},{"tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/5362/"}],"source":{"discovery":"UNKNOWN"},"title":"Improper Authentication in TP-Link TDDP v2 Allows Root Command Execution in TP-Link RE305","x_generator":{"engine":"Vulnogram 1.0.5"}}},"cveMetadata":{"assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","assignerShortName":"TPLink","cveId":"CVE-2026-102814","datePublished":"2026-10-27T17:40:43.627Z","dateReserved":"2026-09-29T17:18:44.961Z","dateUpdated":"2026-10-27T17:40:43.627Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-27 18:17:30","lastModifiedDate":"2026-10-27 18:17:30","problem_types":["CWE-78","CWE-78 CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')"],"metrics":{"cvssMetricV40":[{"source":"f23511db-6c3e-4e32-a477-6aa17d310630","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"102814","Ordinal":"1","Title":"Improper Authentication in TP-Link TDDP v2 Allows Root Command E","CVE":"CVE-2026-102814","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"102814","Ordinal":"1","NoteData":"An\nauthentication weakness exists in the TP-Link TDDP v2 service of TP-Link RE305\nV3. TDDP v2 uses a fixed and derivable cryptographic key, which may allow an\nunauthenticated attacker on the same local network to forge protocol packets\nand access privileged TDDP operations, including functionality that can lead to\noperating-system command execution when the TDDP service is running and\naccessible.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated attacker on the same local area\nnetwork to execute arbitrary system commands with root privileges.","Type":"Description","Title":"Improper Authentication in TP-Link TDDP v2 Allows Root Command E"}]}}}