CVE-2025-0890
Estado: AnalizadaCrítica (9.8)—
**UNSUPPORTED WHEN ASSIGNED** Insecure default credentials for the Telnet function in the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an attacker to log in to the management interface if the administrators have the option to change the default credentials but fail to do so.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 14%
- Percentil entre todas las CVEs puntuadas: 96
- 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.
- Explotación
T1190Exploit Public-Facing Applicationinitial access75 % - Impacto principal
T1078Valid Accountsstealth · persistence · privilege escalation · initial access85 % - Impacto secundario
T1552Unsecured Credentialscredential access70 %
AV:N/PR:N/UI:N indica explotación remota sin autenticación (T1190). Las credenciales por defecto no cambiadas permiten T1078 (acceso con cuenta válida) y T1552 (exposición de credenciales hardcodeadas).
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
Tecnologías afectadas (14)
Zyxel — Sbg3300-n000 FirmwareZyxel — Sbg3300-nb00 FirmwareZyxel — Sbg3500-n000 FirmwareZyxel — Sbg3500-nb00 FirmwareZyxel — Vmg1312-b10a FirmwareZyxel — Vmg1312-b10b FirmwareZyxel — Vmg1312-b10e FirmwareZyxel — Vmg3312-b10a FirmwareZyxel — Vmg3313-b10a FirmwareZyxel — Vmg3926-b10b FirmwareZyxel — Vmg4325-b10a FirmwareZyxel — Vmg4380-b10a FirmwareZyxel — Vmg8324-b10a FirmwareZyxel — Vmg8924-b10a Firmware
CWE
- CWE-287
- CWE-522
Referencias
JSON original (NVD)
Mostrar
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