{"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": "2026-03-13T21:38:31.666Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "shortName": "TPLink", "dateUpdated": "2026-03-13T21:38:31.666Z"}, "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"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

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