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CVE-2011-2878

Status: ModifiedHigh (7.5)—
Severity7.5High · CVSS 2.0
Exploitation probability1.06 %higher than 64% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Google Chrome before 14.0.835.202 does not properly restrict access to the window prototype, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors.

CVSS

Base score
7.5
Version
2.0
Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
1.06 %
Percentile among all scored CVEs
64
Score date
10/22/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Google — Chrome

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2011-2878",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-10-04T20:55:01.613",
  "references": [
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=95671",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2011/10/stable-channel-update.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14470",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=95671",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2011/10/stable-channel-update.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14470",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Google Chrome before 14.0.835.202 does not properly restrict access to the window prototype, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors."
    },
    {
      "lang": "es",
      "value": "Google Chrome antes de v14.0.835.202 no restringe correctamente el acceso al prototipo de ventana, lo que permite a atacantes remotos evitar la política-de-mismo-origen a través de vectores no especificados."
    }
  ],
  "lastModified": "2026-06-16T23:32:10.150",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FB9CA493-603C-4543-B2FB-322C98504C6C",
              "versionEndExcluding": "14.0.835.202"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}