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CVE-2010-1261

Status: ModifiedHigh (9.3)—

The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized 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-2010-1261",
  "cveTags": [],
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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"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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  },
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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": "2010-06-08T22:30:01.537",
  "references": [
    {
      "url": "http://osvdb.org/65214",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://support.avaya.com/css/P8/documents/100089747",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-159B.html",
      "tags": [
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      "source": "secure@microsoft.com"
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    {
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      "source": "secure@microsoft.com"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka \"Uninitialized Memory Corruption Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en IE8 Developer Toolbar en Microsoft Internet Explorer v8 SP1, SP2 y SP3 permite a atacantes remotos ayudados por el usuario ejecutar código a su elección mediante el acceso a un objeto que (1) no se ha inicializado correctamente o (2) es eliminado, lo que lleva a la corrupción de memoria, también conocido como \"Vulnerabilidad de Corrupción de Memoria No Inicializada\"."
    }
  ],
  "lastModified": "2026-06-16T23:17:58.653",
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}