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CVE-2007-5256

Status: ModifiedHigh (7.5)—💥 Exploit

Multiple stack-based buffer overflows in FSD 2.052 d9 and earlier, and FSFDT FSD 3.000 d9 and earlier, allow (1) remote attackers to execute arbitrary code via a long HELP command on TCP port 3010 to the sysuser::exechelp function in sysuser.cc and (2) remote authenticated users to execute arbitrary code via long commands on TCP port 6809 to the servinterface::sendmulticast function in servinterface.cc, as demonstrated by a PIcallsign command.

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)

Mcdu — FSD

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2007-5256",
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  "metrics": {
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        "source": "nvd@nist.gov",
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          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
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      "affectedData": [
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  ],
  "published": "2007-10-06T17:17:00.000",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-119"
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      "lang": "en",
      "value": "Multiple stack-based buffer overflows in FSD 2.052 d9 and earlier, and FSFDT FSD 3.000 d9 and earlier, allow (1) remote attackers to execute arbitrary code via a long HELP command on TCP port 3010 to the sysuser::exechelp function in sysuser.cc and (2) remote authenticated users to execute arbitrary code via long commands on TCP port 6809 to the servinterface::sendmulticast function in servinterface.cc, as demonstrated by a PIcallsign command."
    },
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      "lang": "es",
      "value": "Múltiples desbordamientos de búfer en FSD 2.052 d9 y anteriores, y FSFDT FSD 3.000 d9 y anteriores, permite (1) a atacantes remotos ejecutar código de su elección a través del comando HELP largo sobre TCP puerto 3010 en la función sysuser::exechelp en sysuser.cc y (2) usuarios remotos validados ejecutar código de su elección a través de comandos largos sobre puerto TCP 6809 en la función servinterface::sendmulticast en servinterface.cc, como se demostró con el comando PIcallsign."
    }
  ],
  "lastModified": "2026-06-16T22:45:45.240",
  "configurations": [
    {
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        {
          "negate": false,
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              "criteria": "cpe:2.3:a:mcdu:fsd:2.052_d9:*:*:*:*:*:*:*",
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          "operator": "OR"
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}