{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18330", "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "state": "PUBLISHED", "assignerShortName": "TPLink", "dateReserved": "2026-07-29T20:03:53.524Z", "datePublished": "2026-09-03T22:24:45.430Z", "dateUpdated": "2026-10-27T17:39:53.630Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "shortName": "TPLink", "dateUpdated": "2026-10-27T17:39:53.630Z"}, "title": "Hardcoded Shared RSA-1024 Private Key in Web Login in TP-Link RE305 and Archer C7", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-321", "description": "CWE-321 Use of hard-coded cryptographic key", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-37", "descriptions": [{"lang": "en", "value": "CAPEC-37 Retrieve Embedded Sensitive Data"}]}], "affected": [{"vendor": "TP-Link Systems Inc.", "product": "RE305 v3", "versions": [{"status": "affected", "version": "0", "lessThan": "1.1.8 Build 20260921 Rel. 42853", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "Archer C7 v5", "versions": [{"status": "affected", "version": "0", "lessThan": "1.3.1 Build 20260821 Rel. 41256", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A hard-coded\ncryptographic key vulnerability exists in TP-Link RE305 V3 and Archer C7 V5.\nThe same RSA-1024 private key is stored within firmware configuration files and\nreused across devices. An attacker who obtains the private key and captures an\nHTTP Web UI login session may use the key to decrypt the administrator\npassword.\u00a0\n\n\n\n\n\nSuccessful\nexploitation may disclose the administrator password captured from an HTTP\nlogin session and compromise session confidentiality.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>A hard-coded\ncryptographic key vulnerability exists in TP-Link RE305 V3 and Archer C7 V5.\nThe same RSA-1024 private key is stored within firmware configuration files and\nreused across devices. An attacker who obtains the private key and captures an\nHTTP Web UI login session may use the key to decrypt the administrator\npassword.&nbsp;</p>\n\n<p>Successful\nexploitation may disclose the administrator password captured from an HTTP\nlogin session and compromise session confidentiality.&nbsp;</p>"}]}], "references": [{"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": ["patch"]}, {"url": "https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware", "tags": ["patch"]}, {"url": "https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware", "tags": ["patch"]}, {"url": "https://www.tp-link.com/us/support/faq/5362/", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "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": 6.1, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Victor Mota", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-04T17:39:51.418332Z", "id": "CVE-2026-18330", "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": "2026-09-04T18:25:58.339Z"}}]}}

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