Read the docs
TI-2019-10372 Aliases CVE-2019-13916GHSA-6558-6jwp-r9q4

An issue was discovered in Cypress (formerly Broadcom) WICED Studio 6.2 CYW20735B1 and…

Priority MEDIUM 40CWE-787Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.01207 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:cypress:wiced_studio:6.2:*:*:*:*:*:*:*6.2VulnerableCypress
cpe:2.3:h:cypress:cyw20735b1:-:*:*:*:*:*:*:*not specified by NVDRunning onCypress
cpe:2.3:h:cypress:cyw20819a1:-:*:*:*:*:*:*:*not specified by NVDRunning onCypress
  • cpe:2.3:a:cypress:wiced_studio:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Cypress
  • cpe:2.3:h:cypress:cyw20735b1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cypress
  • cpe:2.3:h:cypress:cyw20819a1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cypress

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-13916
  2. 2026-10-03 Alias added: GHSA-6558-6jwp-r9q4

References

Exploit 1

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences