CVE-2021-21913

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{"affected": [{"affectedData": [{"product": "D-Link", "vendor": "n/a", "versions": [{"status": "affected", "version": "D-LINK DIR-3040 1.13B03"}]}], "source": "talos-cna@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dir-3040_firmware:1.13b03:*:*:*:*:*:*:*", "matchCriteriaId": "8495556A-FE73-4D22-A3F1-367D0D143DBD", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dir-3040:-:*:*:*:*:*:*:*", "matchCriteriaId": "A4EDA686-7BB6-49CB-8370-E0E5F53914A8", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An information disclosure vulnerability exists in the WiFi Smart Mesh functionality of D-LINK DIR-3040 1.13B03. A specially-crafted network request can lead to command execution. An attacker can connect to the MQTT service to trigger this vulnerability."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de divulgaci\u00f3n de informaci\u00f3n en la funcionalidad WiFi Smart Mesh de D-LINK DIR-3040 versi\u00f3n 1.13B03. Una petici\u00f3n de red especialmente dise\u00f1ada puede conllevar a una ejecuci\u00f3n de un comando. Un atacante puede conectarse al servicio MQTT para desencadenar esta vulnerabilidad"}], "id": "CVE-2021-21913", "lastModified": "2026-06-17T03:36:21.030", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "talos-cna@cisco.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-23T15:15:07.527", "references": [{"source": "talos-cna@cisco.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361"}], "sourceIdentifier": "talos-cna@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-798"}], "source": "talos-cna@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-798"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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