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CVE-2021-43517

Estado: ModificadaCrítica (9.8)—

FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-43517",
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          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
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  "affected": [
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      "affectedData": [
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          "versions": [
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  "published": "2022-04-08T17:15:08.627",
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  "vulnStatus": "Modified",
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    },
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    }
  ],
  "lastModified": "2026-06-17T04:11:03.437",
  "configurations": [
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