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Alto CVE-2026-76640 Multiple Vendors

[CVE-2026-76640] Unitree G1 EDU firmware through 1.5.2 contains multiple chained vulnerabilities in the BLE GATT serv…

Vulnerabilidad · Publicado 27/08/2026

7.5
CVSS 3.x
04 Medio7 Alto9 Crítico10
Severidad: Alto
Resumen ejecutivo

Unitree G1 EDU firmware through 1.5.2 contains multiple chained vulnerabilities in the BLE GATT server and WiFi provisioning stack that allow unauthenticated proximate attackers to achieve root code execution without pairing or credentials by exploiting an unquoted heredoc variable in the WiFi provisioning script and a buffer overflow in the SSID chunk accumulator. Attackers can send crafted BLE w…

Descripción técnica

Descripción técnica

Unitree G1 EDU firmware through 1.5.2 contains multiple chained vulnerabilities in the BLE GATT server and WiFi provisioning stack that allow unauthenticated proximate attackers to achieve root code execution without pairing or credentials by exploiting an unquoted heredoc variable in the WiFi provisioning script and a buffer overflow in the SSID chunk accumulator. Attackers can send crafted BLE writes to overflow a fixed BSS buffer across BLE connections, corrupting an adjacent mainloop function pointer dispatch entry that is subsequently invoked by the cleanup path passing attacker-controlled data to system() as uid 0.

Puntuación CVSS

Score: 7.5/10 — Severidad: HIGH — Estado NIST: Received

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Debilidades (CWE)

CWE-306, CWE-787

Fuente oficial

Publicado en NIST NVD.

¿Qué hacer?
  • Revisar el aviso oficial del fabricante y aplicar los parches o mitigaciones disponibles
  • Consultar las referencias en NIST NVD para actualizaciones de estado
  • Priorizar según el score CVSS y la exposición de los sistemas afectados
Esta alerta fue generada automáticamente a partir del NVD del NIST.
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