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CVE-2009-5140

Estado: ModificadaAlta (8.8)—

The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a "SIP Digest Leak" issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linksys — Spa2102 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-5140",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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  "affected": [
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      "affectedData": [
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  "published": "2020-02-12T14:15:10.620",
  "references": [
    {
      "url": "http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April/002946.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a \"SIP Digest Leak\" issue."
    },
    {
      "lang": "es",
      "value": "La implementación SIP en el adaptador de teléfono Linksys SPA2102, proporciona credenciales en hash en respuesta a un desafío de autenticación no válido, lo que facilita a atacantes remotos obtener acceso por medio de un ataque de fuerza bruta, relacionado con un problema de \"SIP Digest Leak\"."
    }
  ],
  "lastModified": "2026-06-16T23:15:09.493",
  "configurations": [
    {
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