CVE-2019-19192: St Bluenrg-2

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

The Bluetooth Low Energy implementation on STMicroelectronics BLE Stack through 1.3.1 for STM32WB5x devices does not properly handle consecutive Attribute Protocol (ATT) requests on reception, allowing attackers in radio range to cause an event deadlock or crash via crafted packets.

Affected products

• St Bluenrg-2: up to and including 1.3.1
• St WB55: up to and including 1.3.1

Published 2020-02-12. Last modified 2026-06-17.