{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6989", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-04-24T19:24:59.040Z", "datePublished": "2026-04-25T17:15:17.875Z", "dateUpdated": "2026-04-27T17:31:16.306Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-25T17:15:17.875Z"}, "title": "Tenda F453 Telnet Service telnet TendaTelnet command injection", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-77", "lang": "en", "description": "Command Injection"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-74", "lang": "en", "description": "Injection"}]}], "affected": [{"vendor": "Tenda", "product": "F453", "versions": [{"version": "1.0.0.0", "status": "affected"}, {"version": "1.0.0.1", "status": "affected"}, {"version": "1.0.0.2", "status": "affected"}, {"version": "1.0.0.3", "status": "affected"}], "cpes": ["cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*"], "modules": ["Telnet Service"]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-04-24T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-04-24T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-04-24T21:30:05.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "alc9700 (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/359541", "name": "VDB-359541 | Tenda F453 Telnet Service telnet TendaTelnet command injection", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/359541/cti", "name": "VDB-359541 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/796560", "name": "Submit #796560 | Tenda Tenda F453 Router <= V1.0.0.3 Remote Command Execution", "tags": ["third-party-advisory"]}, {"url": "https://github.com/alc9700jmo/CVE/issues/24", "tags": ["exploit", "issue-tracking"]}, {"url": "https://www.tenda.com.cn/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-27T17:27:04.577068Z", "id": "CVE-2026-6989", "options": [{"Exploitation": "poc"}, {"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": "2026-04-27T17:31:16.306Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6989", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-04-24T19:24:59.040Z", "datePublished": "2026-04-25T17:15:17.875Z", "dateUpdated": "2026-04-27T17:31:16.306Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-25T17:15:17.875Z"}, "title": "Tenda F453 Telnet Service telnet TendaTelnet command injection", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-77", "lang": "en", "description": "Command Injection"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-74", "lang": "en", "description": "Injection"}]}], "affected": [{"vendor": "Tenda", "product": "F453", "versions": [{"version": "1.0.0.0", "status": "affected"}, {"version": "1.0.0.1", "status": "affected"}, {"version": "1.0.0.2", "status": "affected"}, {"version": "1.0.0.3", "status": "affected"}], "cpes": ["cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*"], "modules": ["Telnet Service"]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-04-24T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-04-24T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-04-24T21:30:05.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "alc9700 (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/359541", "name": "VDB-359541 | Tenda F453 Telnet Service telnet TendaTelnet command injection", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/359541/cti", "name": "VDB-359541 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/796560", "name": "Submit #796560 | Tenda Tenda F453 Router <= V1.0.0.3 Remote Command Execution", "tags": ["third-party-advisory"]}, {"url": "https://github.com/alc9700jmo/CVE/issues/24", "tags": ["exploit", "issue-tracking"]}, {"url": "https://www.tenda.com.cn/", "tags": ["product"]}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-6989", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-27T17:27:04.577068Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-27T17:31:05.974Z"}}]}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:tenda:f453_firmware:1.0.0.3:*:*:*:*:*:*:*", "matchCriteriaId": "66CB876C-7D99-4A12-91E3-FE153293C3F2", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:tenda:f453:-:*:*:*:*:*:*:*", "matchCriteriaId": "0B2C42B3-1621-4323-BAA4-4B71C33F7C4B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."}], "id": "CVE-2026-6989", "lastModified": "2026-04-30T14:10:06.920", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-04-25T18:16:18.907", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory", "Issue Tracking"], "url": "https://github.com/alc9700jmo/CVE/issues/24"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/submit/796560"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/359541"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/vuln/359541/cti"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.tenda.com.cn/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-77"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "F453", "source": "cna", "vendor": "Tenda"}, "product": "f453", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-28T05:32:07.636206+00:00", "value": {"mitigation_remediation": ["Upgrade the router firmware to a version that removes the vulnerability; verify that the latest release no longer contains the TendaTelnet function.", "If a patch is not available, disable or block the Telnet service entirely and restrict access to the local network or trusted IP ranges.", "Monitor network traffic and router logs for unusual Telnet activity, and apply intrusion detection rules to flag malformed requests."], "summary": {"action": "Apply Patch", "impact": "Command Injection via Telnet Service"}, "threat_synthesis": {"affected_systems": "The affected devices are Tenda F453 routers with firmware 1.0.0.3 or earlier. No other Tenda models or firmware releases are listed as vulnerable.", "description_and_impact": "A vulnerability exists in the Telnet Service of Tenda F453 routers running firmware version 1.0.0.3 or earlier. The flaw resides in the TendaTelnet function accessed through the /goform/telnet endpoint and allows an attacker to inject arbitrary operating\u2011system commands. This results in the execution of those commands on the device, giving attackers a foothold that can lead to full compromise or misuse of the router as a pivot point.", "risk_and_exploitability": "The CVSS score of 5.3 indicates moderate severity, while the EPSS score of less than 1% shows a low probability of exploitation in the wild. The vulnerability is not present in the CISA KEV catalog. The attack can be carried out remotely by sending a crafted request to the Telnet Service; successful exploitation would grant the attacker the ability to execute commands on the device. Given the remote nature of the attack vector, operators should treat this as a high\u2011risk flaw if the service is exposed to untrusted networks."}}}}, "created": "2026-04-27T18:45:11.309927+00:00", "updated": "2026-04-28T05:45:23.288788+00:00", "vendors": ["tenda", "tenda$PRODUCT$f453"]}