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CVE-2019-19192

MediumPublished

The Bluetooth Low Energy implementation on STMicroelectronics BLE Stack through 1.3.1 for STM32WB5x devices does not properly handle consecutive Attribute...

Published: Feb 12, 2020
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Aug 28, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS probability estimate

1.0%

Low · next 30 days

Percentile: 61.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

sweyntooth_bluetooth_low_energy_attacksPoC
Proof of Concept of Sweyntooth Bluetooth Low Energy (BLE) vulnerabilities.

Responsible use

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