Description
Texas Instruments CC256x and WL18xx dual-mode Bluetooth controller devices, when LE scan mode is used, allow remote attackers to trigger a buffer overflow via a malformed Bluetooth Low Energy advertising packet, to cause a denial of service or potentially execute arbitrary code. This affects CC256xC-BT-SP 1.2, CC256xB-BT-SP 1.8, and WL18xx-BT-SP 4.4.
References (5)
Core 5
Core References
Not Applicable x_refsource_misc
https://www.linkedin.com/in/veronica-kovah-2587185
Third Party Advisory x_refsource_misc
https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/856161
Various Sources x_refsource_misc
https://github.com/darkmentorllc/publications/tree/master/2020/TI_SILABS_BLE_RCEs
Various Sources x_refsource_misc
https://github.com/darkmentorllc/jackbnimble/blob/master/host/pocs/ti_wl18xx_adv_rce.py
Various Sources x_refsource_misc
https://www.youtube.com/watch?v=bk5lOxieqbA
Scores
CVSS v3
8.8
EPSS
0.0422
EPSS Percentile
88.8%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-120
Status
published
Products (3)
ti/cc256xb-bt-sp_firmware
< 1.8
ti/cc256xc-bt-sp_firmware
< 1.2
ti/wl18xx-bt-sp_firmware
< 4.4
Published
Nov 13, 2019
Tracked Since
Feb 18, 2026