CVE-2026-76640

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
50(Track*)
EG Risk 50/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 27, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 27, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Unitree G1 EDU 1.5.2 BLE GATT RCE via WiFi Provisioning Stack | Advisories | VulnCheck

https://www.vulncheck.com/advisories/unitree-g1-edu-ble-gatt-rce-via-wifi-provisioning-stack
generic🟡 PoC Available

GitHub - OlivierLaflamme/UniBLEed: Unitree G1 RCE PoC & Scripts (CVE-2026-76639 / CVE-2026-76640) technical details at boschko.ca/g1-ble-rce/ · GitHub

https://github.com/OlivierLaflamme/UniBLEed
generic

UniBLEed: Unauthenticated Root RCE on Any Unitree G1 Humanoid Robot Within Bluetooth Range

https://boschko.ca/g1-ble-rce/

Vendor Advisories for CVE-2026-76640(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 95× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 23:43 UTCEG score recompute
  2. 2026-09-20 23:43 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 11:15 UTCGHSA enrichment
  5. 2026-09-19 22:46 UTCEG score recompute
  6. 2026-09-19 22:46 UTCGHSA enrichment
  7. 2026-09-19 10:18 UTCGHSA enrichment
  8. 2026-09-18 21:51 UTCEG score recompute
  9. 2026-09-18 21:51 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 09:23 UTCGHSA enrichment
  12. 2026-09-17 20:54 UTCEG score recompute
  13. 2026-09-17 20:54 UTCGHSA enrichment
  14. 2026-09-17 07:54 UTCGHSA enrichment
  15. 2026-09-16 19:26 UTCEG score recompute
  16. 2026-09-16 19:26 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 06:56 UTCEG score recompute
  19. 2026-09-16 06:56 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 18:29 UTCGHSA enrichment
  22. 2026-09-15 05:37 UTCEG score recompute
  23. 2026-09-15 05:37 UTCGHSA enrichment
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-14 16:13 UTCGHSA enrichment
Show 70 more
  1. 2026-09-14 03:45 UTCEG score recompute
  2. 2026-09-14 03:45 UTCGHSA enrichment
  3. 2026-09-13 15:17 UTCGHSA enrichment
  4. 2026-09-13 02:50 UTCEG score recompute
  5. 2026-09-13 02:50 UTCGHSA enrichment
  6. 2026-09-12 15:02 UTCEPSS rescore
  7. 2026-09-12 14:22 UTCGHSA enrichment
  8. 2026-09-12 01:54 UTCEG score recompute
  9. 2026-09-12 01:54 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 13:26 UTCEG score recompute
  12. 2026-09-11 13:26 UTCGHSA enrichment
  13. 2026-09-11 00:58 UTCGHSA enrichment
  14. 2026-09-10 12:30 UTCEG score recompute
  15. 2026-09-10 12:30 UTCGHSA enrichment
  16. 2026-09-10 09:35 UTCEPSS rescore
  17. 2026-09-09 23:59 UTCGHSA enrichment
  18. 2026-09-09 09:20 UTCEG score recompute
  19. 2026-09-09 09:20 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-08 20:52 UTCGHSA enrichment
  22. 2026-09-08 06:24 UTCGHSA enrichment
  23. 2026-09-07 17:55 UTCEG score recompute
  24. 2026-09-07 17:55 UTCGHSA enrichment
  25. 2026-09-07 05:27 UTCGHSA enrichment
  26. 2026-09-06 16:50 UTCEG score recompute
  27. 2026-09-06 16:50 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 04:21 UTCGHSA enrichment
  30. 2026-09-05 15:54 UTCEG score recompute
  31. 2026-09-05 15:53 UTCGHSA enrichment
  32. 2026-09-05 03:26 UTCGHSA enrichment
  33. 2026-09-04 14:58 UTCEG score recompute
  34. 2026-09-04 14:57 UTCGHSA enrichment
  35. 2026-09-04 05:07 UTCEPSS rescore
  36. 2026-09-04 02:29 UTCGHSA enrichment
  37. 2026-09-03 13:58 UTCGHSA enrichment
  38. 2026-09-03 01:26 UTCEG score recompute
  39. 2026-09-03 01:26 UTCGHSA enrichment
  40. 2026-09-02 14:12 UTCEPSS rescore
  41. 2026-09-02 12:59 UTCGHSA enrichment
  42. 2026-09-02 00:29 UTCEG score recompute
  43. 2026-09-02 00:29 UTCGHSA enrichment
  44. 2026-09-01 13:54 UTCEPSS rescore
  45. 2026-09-01 12:02 UTCEG score recompute
  46. 2026-09-01 12:02 UTCGHSA enrichment
  47. 2026-09-01 04:40 UTCEPSS rescore
  48. 2026-09-01 04:40 UTCEPSS rescore
  49. 2026-08-31 23:33 UTCGHSA enrichment
  50. 2026-08-31 11:06 UTCGHSA enrichment
  51. 2026-08-30 22:36 UTCEG score recompute
  52. 2026-08-30 22:36 UTCGHSA enrichment
  53. 2026-08-30 19:18 UTCEPSS rescore
  54. 2026-08-30 19:17 UTCEPSS rescore
  55. 2026-08-30 10:09 UTCEG score recompute
  56. 2026-08-30 10:09 UTCGHSA enrichment
  57. 2026-08-30 01:22 UTCEPSS rescore
  58. 2026-08-29 21:42 UTCGHSA enrichment
  59. 2026-08-29 09:14 UTCEG score recompute
  60. 2026-08-29 09:13 UTCGHSA enrichment
  61. 2026-08-28 21:42 UTCEPSS rescore
  62. 2026-08-28 20:43 UTCEG score recompute
  63. 2026-08-28 20:43 UTCGHSA enrichment
  64. 2026-08-28 19:47 UTCEG score recompute
  65. 2026-08-28 19:46 UTCGHSA enrichment
  66. 2026-08-28 09:00 UTCEG score recompute
  67. 2026-08-28 08:59 UTCGHSA enrichment
  68. 2026-08-27 20:27 UTCEG score recompute
  69. 2026-08-27 20:16 UTCEG score recompute
  70. 2026-08-27 20:13 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76640?
CVE-2026-76640 is a high vulnerability published on August 27, 2026. 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…
When was CVE-2026-76640 disclosed?
CVE-2026-76640 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76640 actively exploited?
CVE-2026-76640 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.7% of all scored CVEs.
What is the CVSS score of CVE-2026-76640?
CVE-2026-76640 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-76640?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76640, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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