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OS command injection in Unitree Go2 chat_go set_volume function

Priority HIGH 76CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

Unitree Go2 up to and including 1.1.11.4 contains an OS command injection flaw (CWE-78) in the set_volume function of the chat_go component. The function does not neutralize special characters in its Value argument, so attacker-supplied input reaches an operating system command. A remote attacker with no privileges can run commands on the device, and the CVSS 4.0 score is 9.4. CISA's SSVC assessment lists exploitation as proof of concept.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A security vulnerability has been detected in Unitree Robotics Unitree Go2 up to 1.1.11.4. The impacted element is the function set_volume of the file gpt_thread.py of the component chat_go. Such manipulation of the argument Value leads to os command injection. The attack can be launched remotely. Upgrading to version 1.1.11.5 is sufficient to resolve this issue. You should upgrade the affected component. The vendor confirmed early: "Submission 990502 corresponds to our internal ticket #474 (Go2 chat_go set_volume OS command injection, CWE-78)."

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01377 72nd percentileScored 2026-11-07
Fix Fixed Unitree Go2 (Unitree Robotics): 1.1.11.5

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 Go21.1.11.0; 1.1.11.1; 1.1.11.2; 1.1.11.3; 1.1.11.41.1.11.5Patch availableCNA
  • Unitree Go2 VendorUnitree Robotics Affected 1.1.11.0; 1.1.11.1; 1.1.11.2; 1.1.11.3; 1.1.11.4 Fixed in 1.1.11.5 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:unitree_robotics:unitree_go2:*:*:*:*:*:*:*:*——Unitree Robotics
  • cpe:2.3:a:unitree_robotics:unitree_go2:*:*:*:*:*:*:*:* Versions — — ·Unitree Robotics

Remediation

Upgrade Unitree Go2 to version 1.1.11.5, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Unitree Go2 (Unitree Robotics) Fixed in 1.1.11.5

Timeline

  1. 2026-10-25 Threatist record created from CVE-2026-115995
  2. 2026-10-27 Alias added: GHSA-hr6g-r3r7-8h6f
  3. 2026-10-29 CISA SSVC decision points changed
  4. 2026-10-29 Priority changed: MEDIUM → HIGH

References

  • 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