Read the docs
TI-2026-21913 Aliases CVE-2026-27509GHSA-hcv4-2wj7-9p5g

Unitree Go2 Missing DDS Authentication Enables Adjacent RCE

Priority HIGH 72CWE-306Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00646 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Unitree RoboticsUnitree Go21.1.7 – 1.1.9; 1.1.11—No fix listedCNA
  • Unitree Go2 VendorUnitree Robotics Affected 1.1.7 – 1.1.9; 1.1.11 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:unitree:go2_firmware:*:*:*:*:*:*:*:*1.1.7 – 1.1.9VulnerableUnitree
cpe:2.3:h:unitree:go2:-:*:*:*:*:*:*:*not specified by NVDRunning onUnitree
cpe:2.3:o:unitree:go2_edu_firmware:1.1.11:*:*:*:*:*:*:*1.1.11VulnerableUnitree
cpe:2.3:h:unitree:go2_edu:-:*:*:*:*:*:*:*not specified by NVDRunning onUnitree
  • cpe:2.3:o:unitree:go2_firmware:*:*:*:*:*:*:*:* Versions 1.1.7 – 1.1.9 Vulnerable ·Unitree
  • cpe:2.3:h:unitree:go2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Unitree
  • cpe:2.3:o:unitree:go2_edu_firmware:1.1.11:*:*:*:*:*:*:* Versions 1.1.11 Vulnerable ·Unitree
  • cpe:2.3:h:unitree:go2_edu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Unitree

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27509
  2. 2026-10-03 Alias added: GHSA-hcv4-2wj7-9p5g
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

Other 1

  • TI-2026-80120 OS command injection in Unitree Go2 chat_go set_volume function CVSS 4.0CRITICAL 9.4
  • TI-2026-53550 Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal CVSS 4.0HIGH 8.7
  • TI-2026-53551 Unitree G1 EDU 1.5.2 BLE GATT RCE via WiFi Provisioning Stack CVSS 4.0HIGH 7.7
  • TI-2026-80121 Improper certificate validation in Unitree Go2 chat_go client CVSS 4.0MEDIUM 6.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences