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CVE-2008-6995

Estado: ModificadaMedia (4.3)—Exploit
Gravedad4.3Media · CVSS 2.0
Probabilidad de explotación4.80 %mayor que el 92 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoDisponiblePublicado en Exploit-DB

Desbordamiento inferior de entero en net/base/escape.cc en chrome.dll en Google Chrome v0.2.149.27 pemite a atacantes remotos causar una denegación de servicio (caída buscador) a través de un URI con un manejador no válido seguido de un carácter "%" (tanto por cierto), que provoca una sobre-lectura del buffer, como se ha demostrado usando una URI "about:%".

CVSS

Puntuación base
4.3
Versión
2.0
Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
4.80 %
Percentil entre todas las CVEs puntuadas
92
Fecha de la puntuación
21/10/2026

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).

Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Google — Chrome

CWE

Referencias

Mostrar las 18 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2008-6995",
  "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:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-08-19T05:24:52.717",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2008-09/0028.html",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=122",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://evilfingers.com/advisory/google_chrome_poc.php",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/47908",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://src.chromium.org/viewvc/chrome/branches/chrome_official_branch/src/net/base/escape.cc?r1=1757&r2=1760&pathrev=1760",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/30983",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44899",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.evilfingers.com/advisory/Google_Chrome_Browser_0.2.149.27_in_chrome_dll.php",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.exploit-db.com/exploits/6353",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2008-09/0028.html",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=122",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://evilfingers.com/advisory/google_chrome_poc.php",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://osvdb.org/47908",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://src.chromium.org/viewvc/chrome/branches/chrome_official_branch/src/net/base/escape.cc?r1=1757&r2=1760&pathrev=1760",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/30983",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44899",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.evilfingers.com/advisory/Google_Chrome_Browser_0.2.149.27_in_chrome_dll.php",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/6353",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer underflow in net/base/escape.cc in chrome.dll in Google Chrome 0.2.149.27 allows remote attackers to cause a denial of service (browser crash) via a URI with an invalid handler followed by a \"%\" (percent) character, which triggers a buffer over-read, as demonstrated using an \"about:%\" URI."
    },
    {
      "lang": "es",
      "value": "Desbordamiento inferior de entero en net/base/escape.cc en chrome.dll en Google Chrome v0.2.149.27 pemite a atacantes remotos causar una denegación de servicio (caída buscador) a través de un URI con un manejador no válido seguido de un carácter \"%\" (tanto por cierto), que provoca una sobre-lectura del buffer, como se ha demostrado usando una URI \"about:%\".\r\n"
    }
  ],
  "lastModified": "2026-06-16T23:03:23.303",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:0.2.149.27:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D55D5075-D233-42D6-B1D6-77B7599650EB"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}