CVE-2007-3456

Status: ModifiedHigh (9.3)—💥 Exploit
Integer overflow in Adobe Flash Player 9.0.45.0 and earlier might allow remote attackers to execute arbitrary code via a large length value for a (1) Long string or (2) XML variable type in a crafted (a) FLV or (b) SWF file, related to an "input validation error," including a signed comparison of values that are assumed to be non-negative.
CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Base score: 9.3
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 48%
Percentile among all scored CVEs: 99
Score date: 10/8/2026
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 · Adobe Flash Player 8.0.24 - '.SWF' File Handling Remote Code Execution (7/10/2007)
Affected technologies (1)

Adobe — Flash Player
CWEs

CWE-189
References

Raw JSON (NVD)

Show
{
  "id": "CVE-2007-3456",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 8.6,
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        "obtainOtherPrivilege": false,
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  "published": "2007-07-11T16:30:00.000",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-189"
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  "descriptions": [
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    },
    {
      "lang": "es",
      "value": "El desbordamiento de enteros en Adobe Flash Player versiones 9.0.45.0 y anteriores, podría permitir a los atacantes remotos ejecutar código arbitrario por medio de un valor de longitud grande para un (1) cadena larga o (2) tipo de variable XML en un archivo creado (a) FLV o (b) SWF, relacionado con un \"input validation error\" incluyendo una comparación firmada de valores que se supone que no son negativos"
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  "lastModified": "2026-06-16T22:42:04.433",
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