CVE-2026-20479
Estado: AnalizadaAlta (7.5)—
In Modem, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00741071; Issue ID: MSV-7620.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.71%
- Percentil entre todas las CVEs puntuadas: 52
- Fecha de la puntuación: 6/10/2026
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
T1499.004Application or System Exploitationimpact80 %
Acceso red sin privilegios (AV:N/PR:N) contra firmware de módem; out of bounds read sin validación causa DoS remoto desde estación base rogue.
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 (19)
Mediatek — Mt2735 FirmwareMediatek — Mt6833 FirmwareMediatek — Mt6853 FirmwareMediatek — Mt6855 FirmwareMediatek — Mt6873 FirmwareMediatek — Mt6875 FirmwareMediatek — Mt6877 FirmwareMediatek — Mt6880 FirmwareMediatek — Mt6883 FirmwareMediatek — Mt6885 FirmwareMediatek — Mt6889 FirmwareMediatek — Mt6890 FirmwareMediatek — Mt6891 FirmwareMediatek — Mt6893 FirmwareMediatek — Mt8675 FirmwareMediatek — Mt8771 FirmwareMediatek — Mt8791 FirmwareMediatek — Mt8791t FirmwareMediatek — Mt8797 Firmware
CWE
- CWE-125
Referencias
JSON original (NVD)
Mostrar
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