Vulnerability Description
ArduinoBLE enables Bluetooth Low Energy connectivity on certain Arduino models. Versions prior to 2.0.2 contain a missing bounds check in the ATT layer write request handler that allows a remote, unauthenticated BLE client to corrupt memory in the ATTClass global object. Devices running ArduinoBLE with one or more characteristics configured with the BLEEncryption property are affected. The fix is included starting from the 2.0.2 release.
Related Weaknesses (CWE)
References
- https://github.com/arduino-libraries/ArduinoBLE/pull/431/changes/1460e1a68221fca
- https://github.com/arduino-libraries/ArduinoBLE/releases/tag/2.0.2
- https://github.com/arduino-libraries/ArduinoBLE/security/advisories/GHSA-77v6-cw
FAQ
What is CVE-2026-47773?
CVE-2026-47773 is a documented vulnerability. ArduinoBLE enables Bluetooth Low Energy connectivity on certain Arduino models. Versions prior to 2.0.2 contain a missing bounds check in the ATT layer write request handler that allows a remote, unau...
How severe is CVE-2026-47773?
CVSS scoring is not yet available for CVE-2026-47773. Check NVD for updates.
Is there a patch for CVE-2026-47773?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.