CVE-2025-70994

Estado: Pendiente de análisisAlta (7.3)—

Yadea T5 Electric Bicycles (models manufactured in/after 2024) have a weak authentication mechanism in their keyless entry system. The system utilizes the EV1527 fixed-code RF protocol without implementing rolling codes or cryptographic challenge-response mechanisms. This is vulnerable to signal forgery after a local attacker intercepts any legitimate key fob transmission, allowing for complete unauthorized vehicle operation via a replay attack.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Puntuación base: 7.3

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.27%
Percentil entre todas las CVEs puntuadas: 18
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.

ExplotaciónT1203 Exploitation for Client Executionexecution75 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access70 %
Impacto secundarioT1561.002 Disk Structure Wipeimpact65 %

Requiere interceptación de transmisión física (AV:A) e interacción del usuario (UI:R, activación de llave). Impactos: acceso no autorizado al vehículo (T1078) y potencial control/manipulación del dispositivo (T1561.002).

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

Application Developer Guidance Active Directory Configuration User Training User Account Management Privileged Account Management Password Policies

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Ev1527 — Ev1527^AI Yadea — T5^AI

CWE

CWE-1390

Referencias

JSON original (NVD)

Mostrar

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          "id": "CVE-2025-70994",
          "role": "CISA Coordinator",
          "options": [
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            {
              "automatable": "no"
            },
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          "version": "2.0.3",
          "timestamp": "2026-04-23T15:09:43.949647Z"
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  "published": "2026-04-23T15:36:26.687",
  "references": [
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      "url": "https://github.com/ktauchathuranga/CVE-2025-70994",
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    {
      "url": "https://github.com/ktauchathuranga/ghost-keys",
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      "value": "Yadea T5 Electric Bicycles (models manufactured in/after 2024) have a weak authentication mechanism in their keyless entry system. The system utilizes the EV1527 fixed-code RF protocol without implementing rolling codes or cryptographic challenge-response mechanisms. This is vulnerable to signal forgery after a local attacker intercepts any legitimate key fob transmission, allowing for complete unauthorized vehicle operation via a replay attack."
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  ],
  "lastModified": "2026-06-17T10:03:30.723",
  "sourceIdentifier": "cve@mitre.org"
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