Multiple Vulnerabilities in Unitree G1 EDU Firmware Impact BLE GATT Server and WiFi Provisioning
CVE-2026-76640

7.7HIGH

Key Information:

Vendor

Unitree Robotics

Status
G1 Edu
Vendor
CVE Published:
27 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-76640?

The Unitree G1 EDU firmware exposes critical flaws through its BLE GATT server and WiFi provisioning stack, allowing proximity-based attackers to execute arbitrary code without authentication. By exploiting an unquoted heredoc variable in the WiFi provisioning script alongside a buffer overflow in the SSID chunk accumulator, attackers can send malicious Bluetooth Low Energy (BLE) write requests. This can corrupt essential function pointers and ultimately lead to the execution of attacker-controlled commands with system-level privileges, posing a severe security risk.

Affected Version(s)

G1 EDU 0 <= 1.5.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-76640 - Proof of Concept

References

https://boschko.ca/g1-ble-rce/
technical-descriptionexploit
https://github.com/OlivierLaflamme/UniBLEed
exploit
https://www.vulncheck.com/advisories/unitree-g1-edu-ble-g...
third-party-advisory

CVSS V4

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Olivier Laflamme
.