Is CVE-2019-13916 actively exploited?

No active exploitation of CVE-2019-13916 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-13916 be exploited remotely?

Partially. CVE-2019-13916 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2019-13916?

CVE-2019-13916 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2019-13916

HIGH

CVE-2019-13916

CWE-787Published: April 13, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

An issue was discovered in Cypress (formerly Broadcom) WICED Studio 6.2 CYW20735B1 and CYW20819A1. As a Bluetooth Low Energy (BLE) packet is received, it is copied into a Heap (ThreadX Block) buffer. The buffer allocated in dhmulp_getRxBuffer is four bytes too small to hold the maximum of 255 bytes plus headers. It is possible to corrupt a pointer in the linked list holding the free buffers of the g_mm_BLEDeviceToHostPool Block pool. This pointer can be fully controlled by overflowing with 3 bytes of packet data and the first byte of the packet CRC checksum. The checksum can be freely chosen by adapting the packet data accordingly. An attacker might be able to allocate the overwritten address as a receive buffer resulting in a write-what-where condition. This is fixed in BT SDK2.4 and BT SDK2.45.

NVD Source

Technical Analysis

CVE-2019-13916 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.