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CVE-2007-6261

Status: ModifiedMedium (4.9)—💥 Exploit

Integer overflow in the load_threadstack function in the Mach-O loader (mach_loader.c) in the xnu kernel in Apple Mac OS X 10.4 through 10.5.1 allows local users to cause a denial of service (infinite loop) via a crafted Mach-O binary.

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).

💥 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.

Affected technologies (1)

Apple — MAC OS X

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2007-6261",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
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        "obtainAllPrivilege": false,
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  "published": "2007-12-06T02:46:00.000",
  "references": [
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      "url": "http://secunia.com/advisories/27884",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-189"
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  ],
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      "lang": "en",
      "value": "Integer overflow in the load_threadstack function in the Mach-O loader (mach_loader.c) in the xnu kernel in Apple Mac OS X 10.4 through 10.5.1 allows local users to cause a denial of service (infinite loop) via a crafted Mach-O binary."
    },
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    }
  ],
  "lastModified": "2026-06-16T22:47:42.463",
  "configurations": [
    {
      "nodes": [
        {
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