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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-47773

ArduinoBLE: Memory corruption via malformed ATT write request

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

arduino-libraries ArduinoBLE

  • < 2.0.2affected

References