CVE-2009-1313

Status: ModifiedHigh (9.3)—💥 Exploit

The nsTextFrame::ClearTextRun function in layout/generic/nsTextFrameThebes.cpp in Mozilla Firefox 3.0.9 allows remote attackers to cause a denial of service (memory corruption) and probably execute arbitrary code via unspecified vectors. NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2009-1302.

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: 8.39%
Percentile among all scored CVEs: 95
Score date: 10/14/2026

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 · Mozilla Firefox 3.0.9 - 'nsTextFrame::ClearTextRun()' Remote Memory Corruption (4/27/2009)

Affected technologies (1)

Mozilla — Firefox

CWEs

CWE-399

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2009-1313",
  "cveTags": [],
  "metrics": {
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        "cvssData": {
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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",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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          "versions": [
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  "published": "2009-04-30T21:30:00.187",
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-399"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The nsTextFrame::ClearTextRun function in layout/generic/nsTextFrameThebes.cpp in Mozilla Firefox 3.0.9 allows remote attackers to cause a denial of service (memory corruption) and probably execute arbitrary code via unspecified vectors.  NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2009-1302."
    },
    {
      "lang": "es",
      "value": "La función nsTextFrame::ClearTextRun en layout/generic/nsTextFrameThebes.cpp en Mozilla Firefox v3.0.9 permite a atacantes remotos provocar una denegación de servicio (corrupción de memoria) y, probablemente, ejecutar código arbitrario a través de vectores no especificados. NOTA: esta vulnerabilidad existe porque supuestamente se dio una solución incorrecta para CVE-2009-1302."
    }
  ],
  "lastModified": "2026-06-16T23:07:00.867",
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}