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CVE-2021-21301

Estado: ModificadaMedia (4.3)—

Wire es una plataforma de colaboración de código abierto. En Wire para iOS (iPhone y iPad) anterior a versión 3.75, se presenta una vulnerabilidad en la que la captura de video no se detiene en un escenario en el que un usuario primero tiene su cámara habilitada y luego la deshabilita. Es un problema de privacidad porque el video se transmite a la llamada cuando el usuario cree que está deshabilitado. Afecta a todos los usuarios en las videollamadas. Esto se corrige en la versión 3.75

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-2021-21301",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 2.6,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
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          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "wireapp",
          "product": "wire-ios",
          "versions": [
            {
              "status": "affected",
              "version": "< 3.75"
            }
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  "published": "2021-02-11T18:15:16.910",
  "references": [
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      "url": "https://github.com/wireapp/wire-ios/commit/7e3c30120066c9b10e50cc0d20012d0849c33a40",
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wire is an open-source collaboration platform. In Wire for iOS (iPhone and iPad) before version 3.75 there is a vulnerability where the video capture isn't stopped in a scenario where a user first has their camera enabled and then disables it. It's a privacy issue because video is streamed to the call when the user believes it is disabled. It impacts all users in video calls. This is fixed in version 3.75."
    },
    {
      "lang": "es",
      "value": "Wire es una plataforma de colaboración de código abierto.&#xa0;En Wire para iOS (iPhone y iPad) anterior a versión 3.75, se presenta una vulnerabilidad en la que la captura de video no se detiene en un escenario en el que un usuario primero tiene su cámara habilitada y luego la deshabilita.&#xa0;Es un problema de privacidad porque el video se transmite a la llamada cuando el usuario cree que está deshabilitado.&#xa0;Afecta a todos los usuarios en las videollamadas.&#xa0;Esto se corrige en la versión 3.75"
    }
  ],
  "lastModified": "2026-06-17T03:35:14.940",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wire:wire:*:*:*:*:*:iphone_os:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9D324BAB-15A4-4787-8EC0-8AE5F18C84A8",
              "versionEndExcluding": "3.75"
            }
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          "operator": "OR"
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      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}