CVE-2026-76640 (GCVE-0-2026-76640)

Vulnerability from cvelistv5 – Published: 2026-08-27 17:52 – Updated: 2026-08-28 15:53
VLAI
Title
Unitree G1 EDU 1.5.2 BLE GATT RCE via WiFi Provisioning Stack
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.
Severity
7.7 (High)
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 15:53 UTC
CWE
  • CWE-787 - Out-of-bounds Write
  • CWE-306 - Missing Authentication for Critical Function
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6249 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Unitree Robotics G1 EDU Affected: 0 , ≤ 1.5.2 (semver)
guessed Create a notification for this product.
Date Public
2026-08-27 00:00
Credits
Olivier Laflamme
Show details on NVD website
To clipboard 

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