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CVE-2021-21176

Estado: ModificadaMedia (6.5)—

Una implementación inapropiada en full screen mode en Google Chrome versiones anteriores a 89.0.4389.72, permitió a un atacante remoto falsificar el contenido del Omnibox (barra de URL) por medio de una página HTML diseñada

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 (3)

Debian — Debian LinuxFedoraproject — FedoraGoogle — Chrome

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21176",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Chrome",
          "versions": [
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              "version": "unspecified",
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              "versionType": "custom"
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  ],
  "published": "2021-03-09T18:15:17.000",
  "references": [
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      "url": "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html",
      "tags": [
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    },
    {
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      "source": "chrome-cve-admin@google.com"
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    {
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      "source": "chrome-cve-admin@google.com"
    },
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      "tags": [
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      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://www.debian.org/security/2021/dsa-4886",
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      "source": "chrome-cve-admin@google.com"
    },
    {
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        "Permissions Required",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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    },
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      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Inappropriate implementation in full screen mode in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Una implementación inapropiada en full screen mode en Google Chrome versiones anteriores a 89.0.4389.72, permitió a un atacante remoto falsificar el contenido del Omnibox (barra de URL) por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T03:34:58.367",
  "configurations": [
    {
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  "sourceIdentifier": "chrome-cve-admin@google.com"
}