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CVE-2019-12806

Estado: ModificadaAlta (8.8)—

UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, due to a buffer overflow in a library. That leads remote attacker to execute arbitrary code via crafted https packets.

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)

Crosscert — Unisign

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2019-12806",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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    "cvssMetricV31": [
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          "version": "3.1",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "vuln@krcert.or.kr",
      "affectedData": [
        {
          "vendor": "CROSSCERT",
          "product": "UniSign",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.4.0"
            }
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  "published": "2019-08-13T20:15:11.807",
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      "tags": [
        "Third Party Advisory",
        "VDB Entry"
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      "source": "vuln@krcert.or.kr"
    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "vuln@krcert.or.kr",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
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      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, due to a buffer overflow in a library. That leads remote attacker to execute arbitrary code via crafted https packets."
    },
    {
      "lang": "es",
      "value": "UniSign 2.0.4.0 y versiones anteriores contienen una vulnerabilidad de desbordamiento del búfer basada en la pila que puede sobrescribir la pila con datos arbitrarios, debido a un desbordamiento del búfer en una biblioteca. Eso lleva al atacante remoto a ejecutar código arbitrario a través de paquetes https diseñados."
    }
  ],
  "lastModified": "2026-06-17T02:15:30.900",
  "configurations": [
    {
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  "sourceIdentifier": "vuln@krcert.or.kr"
}