CVE-2026-20502
Estado: AnalizadaAlta (8.4)—
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11262030; Issue ID: MSV-9196.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.13%
- Percentil entre todas las CVEs puntuadas: 2
- 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
T1068Exploitation for Privilege Escalationprivilege escalation95 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 %
Buffer overflow (CWE-122) en firmware local (AV:L, PR:N, UI:N) → escalada de privilegios T1068. Acceso remoto a code execution vía out-of-bounds write.
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 (53)
Mediatek — Mt2718 FirmwareMediatek — Mt6580 FirmwareMediatek — Mt6739 FirmwareMediatek — Mt6761 FirmwareMediatek — Mt6765 FirmwareMediatek — Mt6768 FirmwareMediatek — Mt6769 FirmwareMediatek — Mt6779 FirmwareMediatek — Mt6781 FirmwareMediatek — Mt6785 FirmwareMediatek — Mt6789 FirmwareMediatek — Mt6833 FirmwareMediatek — Mt6835 FirmwareMediatek — Mt6853 FirmwareMediatek — Mt6855 FirmwareMediatek — Mt6858 FirmwareMediatek — Mt6873 FirmwareMediatek — Mt6877 FirmwareMediatek — Mt6878 FirmwareMediatek — Mt6879 FirmwareMediatek — Mt6881 FirmwareMediatek — Mt6883 FirmwareMediatek — Mt6885 FirmwareMediatek — Mt6886 FirmwareMediatek — Mt6889 FirmwareMediatek — Mt6893 FirmwareMediatek — Mt6895 FirmwareMediatek — Mt6897 FirmwareMediatek — Mt6899 FirmwareMediatek — Mt6983 FirmwareMediatek — Mt6985 FirmwareMediatek — Mt6989 FirmwareMediatek — Mt6991 FirmwareMediatek — Mt6993 FirmwareMediatek — Mt8126 FirmwareMediatek — Mt8171 FirmwareMediatek — Mt8186 FirmwareMediatek — Mt8188 FirmwareMediatek — Mt8189 FirmwareMediatek — Mt8195 FirmwareMediatek — Mt8196 FirmwareMediatek — Mt8367 FirmwareMediatek — Mt8391 FirmwareMediatek — Mt8395 FirmwareMediatek — Mt8668 FirmwareMediatek — Mt8676 FirmwareMediatek — Mt8678 FirmwareMediatek — Mt8696 FirmwareMediatek — Mt8781 FirmwareMediatek — Mt8788e FirmwareMediatek — Mt8792 FirmwareMediatek — Mt8799 FirmwareMediatek — Mt8910 Firmware
CWE
- CWE-122
Referencias
JSON original (NVD)
Mostrar
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