{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3227","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","state":"PUBLISHED","assignerShortName":"TPLink","dateReserved":"2026-02-25T20:03:19.802Z","datePublished":"2026-03-13T21:38:31.666Z","dateUpdated":"2026-03-17T03:55:35.442Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink","dateUpdated":"2026-03-16T16:16:25.873Z"},"title":"Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-78","description":"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-88","descriptions":[{"lang":"en","value":"CAPEC-88 OS Command Injection"}]}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"TL-WR802N v4","platforms":["Linux"],"versions":[{"status":"affected","version":"0","lessThan":"V4_260304","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"TL-WR841N v14","platforms":["Linux"],"versions":[{"status":"affected","version":"0","lessThan":"V14_260303","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP Link Systems Inc.","product":"TL-WR840N v6","platforms":["Linux"],"versions":[{"status":"affected","version":"0","lessThan":"V6_260304","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command.  In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing.  \nSuccessful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.","supportingMedia":[{"type":"text/html","base64":false,"value":"A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command.  In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing.  <br>Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.<br><br>"}]}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5018/","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","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":"HIGH","baseScore":8.5,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"do4choo (github.com/do4choo)","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-16T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-3227"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-17T03:55:35.442Z"}}]}}