CVE-2010-3886

Status: ModifiedMedium (4.3)—💥 Exploit

The CTimeoutEventList::InsertIntoTimeoutList function in Microsoft mshtml.dll uses a certain pointer value as part of producing Timer ID values for the setTimeout and setInterval methods in VBScript and JScript, which allows remote attackers to obtain sensitive information about the heap memory addresses used by an application, as demonstrated by the Internet Explorer 8 application.

CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Base score: 4.3

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 16%
Percentile among all scored CVEs: 97
Score date: 10/9/2026

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Microsoft - 'MSHTML.dll' CTIMEOUTEVENTLIST::INSERTINTOTIMEOUTLIST Memory Leak (7/9/2010)

Affected technologies (1)

Microsoft — Internet Explorer

CWEs

CWE-200

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2010-3886",
  "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": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-10-08T22:00:36.707",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2010-06/0259.html",
      "tags": [
        "Broken Link",
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://twitter.com/WisecWisec/statuses/17254776077",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.eeye.com/Resources/Security-Center/Research/Zero-Day-Tracker/2010/20100630",
      "tags": [
        "Not Applicable"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11606",
      "tags": [
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      "source": "cve@mitre.org"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://twitter.com/WisecWisec/statuses/17254776077",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.eeye.com/Resources/Security-Center/Research/Zero-Day-Tracker/2010/20100630",
      "tags": [
        "Not Applicable"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11606",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
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      ]
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  "descriptions": [
    {
      "lang": "en",
      "value": "The CTimeoutEventList::InsertIntoTimeoutList function in Microsoft mshtml.dll uses a certain pointer value as part of producing Timer ID values for the setTimeout and setInterval methods in VBScript and JScript, which allows remote attackers to obtain sensitive information about the heap memory addresses used by an application, as demonstrated by the Internet Explorer 8 application."
    },
    {
      "lang": "es",
      "value": "La función CTimeoutEventList::InsertIntoTimeoutList en el fichero mshtml.dll de Microsoft utiliza un valor de puntero para producir de valores de identificación a partir de un temporizador para los métodos setTimeout y setInterval en VBScript y JScript, lo que permite a atacantes remotos obtener información sensible acerca de las direcciones de la memoria 'heap' usada por una aplicación, como lo demuestra la aplicación Internet Explorer 8."
    }
  ],
  "lastModified": "2026-06-16T23:23:45.600",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A52E757F-9B41-43B4-9D67-3FEDACA71283"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "cve@mitre.org"
}