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CVE-2021-22204

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

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

Archivo DjVu malicioso en ExifTool requiere interacción del usuario (UI:R) para ejecución remota de código. CWE-94 indica inyección de código; vector AV:L/PR:N/UI:R confirma T1203. Impacto: ejecución de comandos (T1059) y potencial lectura de datos (T1005).

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)

Debian — Debian LinuxExiftool Project — ExiftoolFedoraproject — Fedora

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-22204",
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              "automatable": "no"
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      "description": [
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      "lang": "en",
      "value": "Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image"
    },
    {
      "lang": "es",
      "value": "Una neutralización inapropiada de los datos del usuario en el formato de archivo DjVu en ExifTool versiones 7.44 y posteriores, permite una ejecución de código arbitrario cuando se analiza la imagen maliciosa"
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  "lastModified": "2026-06-17T03:36:47.890",
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  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "ExifTool Remote Code Execution Vulnerability"
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