{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T11:14:23.273","vulnerabilities":[{"cve":{"id":"CVE-2021-21969","sourceIdentifier":"talos-cna@cisco.com","published":"2022-02-04T23:15:10.753","lastModified":"2024-11-21T05:49:20.503","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [4] the json_object_get_string to populate the p_payload global variable. The p_payload is only 0x100 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json’s value and not the actual str size, this would result in a possible out-of-bounds write."},{"lang":"es","value":"Se presenta una vulnerabilidad de escritura fuera de límites en la funcionalidad HandleSeaCloudMessage de Sealevel Systems, Inc. SeaConnect 370W versión v1.3.34. La función HandleIncomingSeaCloudMessage usa en [4] el json_object_get_string para rellenar la variable global p_payload. El p_payload presenta sólo 0x100 bytes de longitud, y el mensaje MQTT total podría ser de hasta 0x201 bytes. Debido a que la función json_object_get_string rellenará str basándose en la longitud del valor de json y no en el tamaño real de str, esto resultaría en una posible escritura fuera de límites"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":5.9}],"cvssMetricV30":[{"source":"talos-cna@cisco.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":1.4}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"talos-cna@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-120"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-787"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:*:*:*:*:*:*:*","matchCriteriaId":"06014E46-DFB2-45C7-99FD-972EBCCC5FD3"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:sealevel:seaconnect_370w:-:*:*:*:*:*:*:*","matchCriteriaId":"D8CC996D-F36A-4B26-BD50-68F88D24D001"}]}]}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396","source":"talos-cna@cisco.com","tags":["Exploit","Technical Description","Third Party Advisory"]},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Technical Description","Third Party Advisory"]}]}}]}