Critical RCE Flaws Discovered in Unitree G1 EDU Robot

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Critical RCE Flaws Discovered in Unitree G1 EDU Robot

First seen 28 Aug 2026, 13:22 UTC • •64.5

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ThreatCluster •August 29, 2026 at 11:51 UTC

•Two critical RCE vulnerabilities in Unitree G1 EDU robot identified as CVE-2026-76639 and CVE-2026-76640.
•Exploitation methods include network-adjacent access and BLE for unauthenticated root access.
•No confirmed firmware fix available, leaving users without remediation options.

Security researcher Olivier Laflamme disclosed two critical root remote code execution (RCE) vulnerabilities in the Unitree G1 EDU robot, tracked as CVE-2026-76639 and CVE-2026-76640. The first vulnerability allows RCE through a network-adjacent path involving chat_go and bashrunner, while the second exploits Bluetooth Low Energy (BLE) for unauthenticated access. These flaws enable attackers to gain root access to the robot's Locomotion PC, which is crucial for its operation. A previously patched authorization gap in Unitree's cloud service has been addressed, but no confirmed firmware fix for the G1 EDU has been released as of August 27, 2026. The potential impact on other Unitree robot models is still unverified, leaving users vulnerable. The vulnerabilities were made public on August 27, 2026, with proof-of-concept code available since August 25, 2026.

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Timeline

2026-08-25

First public PoC released

Proof-of-concept code for CVE-2026-76639 was made publicly available, demonstrating the vulnerability's exploitability.

2026-08-27

CVE-2026-76639 and CVE-2026-76640 published

Both vulnerabilities were officially published, detailing their exploitation methods and potential impact.

Recent

Authorization gap patched

Unitree addressed a previously identified authorization gap in its cloud service, improving security for unauthorized accounts.

More articles in this cluster (12)

Threat Graph

7 entities, 8 inferred relationships (STIX 2.1).

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Technique (1)

Zero-day Exploit

Organization (1)

Unitree

Vulnerability (2)

CVE-2026-76639
CVE-2026-76640

Weakness (1)

CWE-120 - Classic Buffer Overflow

Affected Platform (2)

Bluetooth Low Energy
Unitree G1 EDU Robot

Relationships

CVE-2026-76639 targets Bluetooth Low Energy
CVE-2026-76639 targets Unitree G1 EDU Robot
CVE-2026-76640 targets Bluetooth Low Energy
CVE-2026-76640 targets Unitree G1 EDU Robot
Zero-day Exploit targets Bluetooth Low Energy
Zero-day Exploit targets Unitree G1 EDU Robot
CVE-2026-76639 related to Unitree
CVE-2026-76639 related to CWE-120 - Classic Buffer Overflow

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