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CVE-2019-8269

Estado: ModificadaAlta (7.5)—

UltraVNC revision 1206 has stack-based Buffer overflow vulnerability in VNC client code inside FileTransfer module, which leads to a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. This vulnerability has been fixed in revision 1207.

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 (4)

Siemens — Sinumerik Access Mymachine/p2pSiemens — Sinumerik PCU Base Win10 Software/ipcSiemens — Sinumerik PCU Base Win7 Software/ipcUvnc — Ultravnc

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-8269",
  "cveTags": [],
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        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "vulnerability@kaspersky.com",
      "affectedData": [
        {
          "vendor": "Kaspersky Lab",
          "product": "UltraVNC",
          "versions": [
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              "status": "affected",
              "version": "1.2.2.3"
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  "published": "2019-03-08T23:29:00.657",
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      "tags": [
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      "source": "vulnerability@kaspersky.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vulnerability@kaspersky.com",
      "description": [
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          "lang": "en",
          "value": "CWE-121"
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      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "UltraVNC revision 1206 has stack-based Buffer overflow vulnerability in VNC client code inside FileTransfer module, which leads to a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. This vulnerability has been fixed in revision 1207."
    },
    {
      "lang": "es",
      "value": "UltraVNC, en su revisión 1206, tiene un desbordamiento de búfer basado en pila en el código del cliente VNC dentro del módulo \"FileTransfer\", lo cual conduce a una condición de denegación de servicio (DoS). Este ataque parece ser explotable mediante la conectividad de red. Esta vulnerabilidad se ha solucionado en la revisión 1207."
    }
  ],
  "lastModified": "2026-06-17T02:41:47.043",
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