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CVE-2021-21967

Estado: ModificadaMedia (5.9)—

An out-of-bounds write vulnerability exists in the OTA update task functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Sealevel — Seaconnect 370w Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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          "version": "2.0.3",
          "timestamp": "2025-04-15T18:19:03.652911Z"
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          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
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  "published": "2022-04-14T20:15:08.650",
  "references": [
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  "vulnStatus": "Modified",
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      "value": "An out-of-bounds write vulnerability exists in the OTA update task functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de escritura fuera de límites en la funcionalidad OTA update task de Sealevel Systems, Inc. SeaConnect 370W versión v1.3.34. Una carga útil MQTT especialmente diseñada puede conllevar a una denegación de servicio. Un atacante puede llevar a cabo un ataque de tipo man-in-the-middle para desencadenar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T03:36:28.040",
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