CVE-2008-4546

Status: ModifiedMedium (4.3)—💥 Exploit
Adobe Flash Player before 9.0.277.0 and 10.x before 10.1.53.64, and Adobe AIR before 2.0.2.12610, allows remote web servers to cause a denial of service (NULL pointer dereference and browser crash) by returning a different response when an HTTP request is sent a second time, as demonstrated by two responses that provide SWF files with different SWF version numbers.
CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Base score: 4.3
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 66%
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 9/10 - SWF Version Null Pointer Dereference Denial of Service (10/2/2008)
Affected technologies (1)

Adobe — Flash Player
CWEs

CWE-399
References

Raw JSON (NVD)

Show
{
  "id": "CVE-2008-4546",
  "cveTags": [],
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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              "status": "affected",
              "version": "n/a"
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  "published": "2008-10-14T15:28:16.723",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
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  "descriptions": [
    {
      "lang": "en",
      "value": "Adobe Flash Player before 9.0.277.0 and 10.x before 10.1.53.64, and Adobe AIR before 2.0.2.12610, allows remote web servers to cause a denial of service (NULL pointer dereference and browser crash) by returning a different response when an HTTP request is sent a second time, as demonstrated by two responses that provide SWF files with different SWF version numbers."
    },
    {
      "lang": "es",
      "value": "Adobe Flash Player 9.0.45.0, 9.0.112.0, 9.0.124.0, y 10.0.12.10 permite a los servidores web remotos causar una denegación de servicio (referencia a puntero nulo y finalización de la aplicación) devolviendo una respuesta inapropiada cuando una solicitud HTTP se envía por segunda vez, como lo demuestran las respuestas que proporcionan dos ficheros SWF con números de versión SWF diferentes."
    }
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  "lastModified": "2026-06-16T22:58:02.737",
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}