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CVE-2011-1251

Status: ModifiedHigh (9.3)—

Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka "DOM Manipulation Memory Corruption Vulnerability."

CVSS

Exploitation probability (EPSS)

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)

Microsoft — Internet Explorer

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2011-1251",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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        }
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  ],
  "published": "2011-06-16T20:55:01.543",
  "references": [
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-050",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12326",
      "tags": [
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    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "tags": [
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-908"
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  "descriptions": [
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      "lang": "en",
      "value": "Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka \"DOM Manipulation Memory Corruption Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Microsoft Internet Explorer 8 no maneja adecuadamente los objetos en memoria, lo que permite a atacantes remotos ejecutar código de su elección accediendo a un objeto que (1) no haya sido iniciado adecuadamente o (2) es eliminado. También se conoce como \"Vulnerabilidad de Corrupción de Memoria en la Manipulación DOM\""
    }
  ],
  "lastModified": "2026-06-16T23:29:01.443",
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}