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TI-2026-53551 Aliases CVE-2026-76640GHSA-4qj2-mfrv-5fm4

Unitree G1 EDU 1.5.2 BLE GATT RCE via WiFi Provisioning Stack

Priority HIGH 69CWE-306Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass, Code execution
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, CWE-787 and the CVSS impact.

Summary

Unitree G1 EDU firmware through 1.5.2 contains multiple chained vulnerabilities in the BLE GATT server and WiFi provisioning stack that allow unauthenticated proximate attackers to achieve root code execution without pairing or credentials by exploiting an unquoted heredoc variable in the WiFi provisioning script and a buffer overflow in the SSID chunk accumulator. Attackers can send crafted BLE writes to overflow a fixed BSS buffer across BLE connections, corrupting an adjacent mainloop function pointer dispatch entry that is subsequently invoked by the cleanup path passing attacker-controlled data to system() as uid 0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00345 28th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
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 RoboticsG1 EDUup to 1.5.2—No fix listedCNA
  • G1 EDU VendorUnitree Robotics Affected up to 1.5.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-76640
  2. 2026-10-03 Alias added: GHSA-4qj2-mfrv-5fm4

References

Exploit 2

  • 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-2026-80121 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