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CVE-2024-8840

Estado: AnalizadaAlta (7.8)—

PDF-XChange Editor JB2 File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 JB2 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-24420.

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.

Acceso local (AV:L) con interacción del usuario (UI:R) al abrir un archivo JB2 malicioso. Out-of-bounds read en parseo permite RCE en el contexto del proceso.

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 (2)

Pdf-xchange — Pdf-toolsPdf-xchange — Pdf-xchange Editor

CWE

Referencias

JSON original (NVD)

Mostrar
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          "version": "2.0.3",
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  "published": "2024-11-22T21:15:22.537",
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          "value": "CWE-125"
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      "value": "PDF-XChange Editor JB2 File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of JB2 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-24420."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ejecución de código remoto en el análisis de archivos JB2 del editor PDF-XChange que no se encuentra dentro de los límites de lectura. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas del editor PDF-XChange. 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 JB2. El problema es el resultado de la falta de una validación adecuada de los datos proporcionados por el usuario, lo que puede resultar en una lectura más allá del final de un búfer asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. . Era ZDI-CAN-24420."
    }
  ],
  "lastModified": "2026-06-17T08:23:24.043",
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