CVE-2025-49461

Estado: AnalizadaAlta (7.4)—

Cross-site scripting in certain Zoom Workplace Clients may allow an unauthenticated user to conduct a denial of service via network access.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
Puntuación base: 7.4

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.31%
Percentil entre todas las CVEs puntuadas: 21
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1189 Drive-by Compromiseinitial access95 %
Impacto principalT1499.004 Application or System Exploitationimpact85 %

XSS (CWE-79) en cliente web de Zoom con UI:R y A:H permite DoS remoto sin autenticación. AV:N/AC:L/PR:N/UI:R → T1189 (drive-by). Impacto: negación de servicio en aplicación víctima.

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

User Training Restrict Web-Based Content Filter Network Traffic Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (6)

Zoom — Meeting Software Development KIT Zoom — Rooms Zoom — Rooms Controller Zoom — Workplace Zoom — Workplace Desktop Zoom — Workplace Virtual Desktop Infrastructure

CWE

CWE-79

Referencias

https://www.zoom.com/en/trust/security-bulletin/ZSB-25034

JSON original (NVD)

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