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CVE-2024-11950

Estado: AnalizadaAlta (8.8)—

XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of RWZ files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22913.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Requiere interacción del usuario (UI:R) para abrir archivo RWZ malicioso, ejecutando código arbitrario en el contexto del proceso XnView.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or Program

Tecnologías afectadas (1)

Xnview — Xnview

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2024-11950",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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          "id": "CVE-2024-11950",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-12-12T15:31:57.325557Z"
        }
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    ],
    "cvssMetricV30": [
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        "type": "Secondary",
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          "attackVector": "LOCAL",
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          "vectorString": "CVSS:3.0/AV:L/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": 1.8
      }
    ],
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        "type": "Primary",
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  "affected": [
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      "affectedData": [
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          "vendor": "XnSoft",
          "product": "XnView Classic",
          "versions": [
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              "status": "affected",
              "version": "2.51.5"
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          "defaultStatus": "unknown"
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  "published": "2024-12-12T01:40:21.820",
  "references": [
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1640/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "zdi-disclosures@trendmicro.com"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "zdi-disclosures@trendmicro.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\n\nThe specific flaw exists within the parsing of RWZ files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22913."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ejecución remota de código por desbordamiento de enteros en el análisis de archivos RWZ de XnSoft XnView Classic. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de XnSoft XnView Classic. Se requiere la interacción del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica existe en el análisis de archivos RWZ. El problema es el resultado de la falta de una validación adecuada de los datos proporcionados por el usuario, lo que puede provocar un desbordamiento de enteros antes de escribir en la memoria. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Era ZDI-CAN-22913."
    }
  ],
  "lastModified": "2026-06-17T06:58:45.613",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:xnview:xnview:2.51.5:*:*:*:classic:*:*:*",
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}