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CVE-2026-82078

Estado: AnalizadaCrítica (9.4)⚠ Explotación activa

An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and PaperCut NG. The application instantiates database driver classes based on configurable driver names without validating against an allowlist of approved drivers. If an attacker can manipulate system configuration parameters, this enables the execution of arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process.

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.

AV:N, PR:H sin UI permite explotar servicios remotos. Carga dinámica de clases Java sin validación ejecuta bytecode arbitrario (T1059.004) bajo contexto de proceso del servidor PaperCut, con potencial escalada de privilegios (T1548.004) y acceso a datos de configuración (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

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationExecution PreventionDisable or Remove Feature or Program

Tecnologías afectadas (2)

Papercut — Papercut MFPapercut — Papercut NG

CWE

Referencias

JSON original (NVD)

Mostrar
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