Vulnerability · Published Aug 27, 2026 · Assigned by VulnCheck
CVE-2026-76639Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal
High 8.8
In plain English
A high-severity path traversal in G1 EDU from Unitree Robotics. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Unitree G1 EDU firmware through 1.5.2 contains an unauthenticated remote code execution vulnerability that allows network-adjacent attackers to execute arbitrary commands as root by chaining three weaknesses: an unauthenticated WebRTC-to-DDS bridge on TCP port 9991, a static AES-128 key stored with world-readable permissions, and a path traversal flaw in the chat_go knowledge upload API. Attackers can publish DDS control messages to restart the bashrunner service, plant a malicious payload in its script execution directory via path traversal, and trigger execution of that payload as uid 0 through the bashrunner shell subprocess.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unitree Robotics | G1 EDU | 0 – through 1.5.2 |
Weakness: CWE-22, CWE-306 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- Researcher Blog technical-description, exploit
- GitHub Repository exploit
- https://www.vulncheck.com/advisories/unitree-g1-edu-unauthenticated-rce-via-dds-bridge-and-path-traversal third-party-advisory