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CVE-2026-27509: Unitree Go2 firmware: Unauthenticated code execution via DDS protocol

CVE-2026-27509 · published 8 months ago

Summary

The Unitree Go2 robot's firmware has a security flaw that allows an attacker on the same network to inject code into the robot, which can run with superuser privileges. This allows the attacker to take control of the robot. To fix this, update the firmware to a version that has the security patch.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
unitree	go2_firmware	>= 1.1.7, <= 1.1.9 `cpe:2.3:o:unitree:go2_firmware::::::::`
unitree	go2_edu_firmware	1.1.11 `cpe:2.3:o:unitree:go2_edu_firmware:1.1.11:::::::*`

Original advisory text

Unitree Go2 firmware versions V1.1.7 through V1.1.9, and V1.1.11 (EDU) do not implement DDS authentication or authorization for the Eclipse CycloneDDS topic rt/api/programming_actuator/request handled by actuator_manager.py. A network-adjacent, unauthenticated attacker can join DDS domain 0 and publish a crafted message (api_id=1002) containing arbitrary Python, which the robot writes to disk under /unitree/etc/programming/ and binds to a physical controller keybinding. When the keybinding is pressed, the code executes as root and the binding persists across reboots.

References

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker full control

Severity

8.5 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-306Missing Authentication for Critical Function

Timeline

Published26 Feb 2026

Updated4 Nov 2026

First seen6 Mar 2026

Sources

CVE-2026-27509 · NVD

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