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CVE-2025-6660

Estado: AnalizadaAlta (7.8)—

PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow 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 GIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26763.

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 con interacción del usuario requerida (AV:L, UI:R): abrir archivo GIF malicioso en PDF-XChange Editor. Heap buffer overflow permite ejecución de código arbitrario (CWE-122).

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 (3)

Pdf-xchange — Pdf-toolsPdf-xchange — Pdf-xchange EditorPdf-xchange — Pdf-xchange PRO

CWE

Referencias

JSON original (NVD)

Mostrar
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              "technicalImpact": "total"
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "HIGH"
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  "published": "2025-06-25T22:15:23.863",
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      "value": "PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow 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 GIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26763."
    },
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      "value": "Vulnerabilidad de ejecución remota de código por desbordamiento de búfer basado en montón en el análisis de archivos GIF del editor PDF-XChange. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas del editor PDF-XChange. Para explotar esta vulnerabilidad, se requiere la interacción del usuario, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica se encuentra en el análisis de archivos GIF. El problema se debe a la falta de una validación adecuada de la longitud de los datos proporcionados por el usuario antes de copiarlos a un búfer basado en montón de longitud fija. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Era ZDI-CAN-26763."
    }
  ],
  "lastModified": "2026-06-17T10:02:20.077",
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