Vulnerability Monitor

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CVE-2019-15948

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 6 products from ti, from ti, from ti and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-11-13T16:15:11.050

Last Modified

2024-11-21T04:29:48.073

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:P/I:P/A:P

Access Vector: ADJACENT_NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

6.5

Impact Score

6.4

Weaknesses

Type: Primary
CWE-120

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	ti	cc256xc-bt-sp_firmware	≤ 1.2	Yes
Hardware	ti	cc256xc-bt-sp	-	No
Operating System	ti	cc256xb-bt-sp_firmware	≤ 1.8	Yes
Hardware	ti	cc256xb-bt-sp	-	No
Operating System	ti	wl18xx-bt-sp_firmware	≤ 4.4	Yes
Hardware	ti	wl18xx-bt-sp	-	No

References

https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/856161 Third Party Advisory ([email protected])
https://github.com/darkmentorllc/jackbnimble/blob/master/host/pocs/ti_wl18xx_adv_rce.py ([email protected])
https://github.com/darkmentorllc/publications/tree/master/2020/TI_SILABS_BLE_RCEs ([email protected])
https://www.linkedin.com/in/veronica-kovah-2587185 Not Applicable ([email protected])
https://www.youtube.com/watch?v=bk5lOxieqbA ([email protected])
https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/856161 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/darkmentorllc/jackbnimble/blob/master/host/pocs/ti_wl18xx_adv_rce.py (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/darkmentorllc/publications/tree/master/2020/TI_SILABS_BLE_RCEs (af854a3a-2127-422b-91ae-364da2661108)
https://www.linkedin.com/in/veronica-kovah-2587185 Not Applicable (af854a3a-2127-422b-91ae-364da2661108)
https://www.youtube.com/watch?v=bk5lOxieqbA (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For ti's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.