CVE-2008-4226

Status: ModifiedHigh (10)—
Integer overflow in the xmlSAX2Characters function in libxml2 2.7.2 allows context-dependent attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a large XML document.
CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Base score: 10
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.05%
Percentile among all scored CVEs: 90
Score date: 10/3/2026
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).
Affected technologies (1)

Xmlsoft — Libxml
CWEs

CWE-399
References

Raw JSON (NVD)

Show
{
  "id": "CVE-2008-4226",
  "cveTags": [],
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          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
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          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-399"
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  "descriptions": [
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      "lang": "en",
      "value": "Integer overflow in the xmlSAX2Characters function in libxml2 2.7.2 allows context-dependent attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a large XML document."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de entero en la función xmlSAX2Characters en libxml2 2.7.2 que permite a los atacantes dependientes de contexto causar una denegación de servicios (corrupción de memoria) o posiblemente ejecutar arbitrariamente código a través de un documento largo XML"
    }
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  "lastModified": "2026-06-16T22:57:25.333",
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}