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6.5
MEDIUM CVSS 3.1
CVE-2019-17520
Texas Instruments CC2640R2 Bluetooth Low Energy Denial of Service
Description

The Bluetooth Low Energy implementation on Texas Instruments SDK through 3.30.00.20 for CC2640R2 devices does not properly restrict the SM Public Key packet on reception, allowing attackers in radio range to cause a denial of service (crash) via crafted packets.

INFO

Published Date :

Feb. 10, 2020, 9:51 p.m.

Last Modified :

Nov. 21, 2024, 4:32 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2019-17520 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ti cc2640r2_software_development_kit
2 Ti cc2640r2
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Public PoC/Exploit Available at Github

CVE-2019-17520 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-17520.

URL Resource
http://www.ti.com/tool/LAUNCHXL-CC2640R2 Product Vendor Advisory
https://asset-group.github.io/disclosures/sweyntooth/ Third Party Advisory
https://www.youtube.com/watch?v=Iw8sIBLWE_w Exploit Third Party Advisory
http://www.ti.com/tool/LAUNCHXL-CC2640R2 Product Vendor Advisory
https://asset-group.github.io/disclosures/sweyntooth/ Third Party Advisory
https://www.youtube.com/watch?v=Iw8sIBLWE_w Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-17520 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-17520 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
davelaber/sweyntooth_bluetooth_low_energy_attacks

None

Python Dockerfile Shell C++ Makefile C Batchfile

Updated: 1 week, 4 days ago
0 stars 0 fork 0 watcher
Born at : Aug. 22, 2025, 7:37 p.m. This repo has been linked 17 different CVEs too.
Profile Photo
asset-group/vakt-ble-defender

VaktBLE: Friendly Bluetooth Low Energy MitM that block over-the-air attacks in real-time.

ble bluetooth-low-energy injectable jamming mitm ble-defense blediff sweyntooth vaktble

Python Shell Makefile C Batchfile C++ Tcl Mask GLSL C#

Updated: 1 month, 1 week ago
7 stars 1 fork 1 watcher
Born at : Oct. 21, 2024, 6:03 a.m. This repo has been linked 19 different CVEs too.
Profile Photo
JeffroMF/awesome-bluetooth-security321

None

Updated: 10 months, 3 weeks ago
1 stars 0 fork 0 watcher
Born at : April 5, 2022, 9:49 p.m. This repo has been linked 68 different CVEs too.
Profile Photo
engn33r/awesome-bluetooth-security

List of Bluetooth BR/EDR/LE security resources

bluetooth bluetooth-low-energy bluetooth-security pentesting penetration-testing security awesome awesome-list ble bluetooth-hacking

Updated: 1 month, 1 week ago
564 stars 51 fork 51 watcher
Born at : June 21, 2020, 6:27 p.m. This repo has been linked 72 different CVEs too.
Profile Photo
Matheus-Garbelini/sweyntooth_bluetooth_low_energy_attacks

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

Python Shell Batchfile C++ Makefile C Dockerfile

Updated: 1 month, 1 week ago
304 stars 71 fork 71 watcher
Born at : Feb. 10, 2020, 2:21 p.m. This repo has been linked 17 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-17520 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2019-17520 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.ti.com/tool/LAUNCHXL-CC2640R2
    Added Reference https://asset-group.github.io/disclosures/sweyntooth/
    Added Reference https://www.youtube.com/watch?v=Iw8sIBLWE_w
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 14, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.ti.com/tool/LAUNCHXL-CC2640R2 No Types Assigned http://www.ti.com/tool/LAUNCHXL-CC2640R2 Product, Vendor Advisory
    Changed Reference Type https://asset-group.github.io/disclosures/sweyntooth/ No Types Assigned https://asset-group.github.io/disclosures/sweyntooth/ Third Party Advisory
    Changed Reference Type https://www.youtube.com/watch?v=Iw8sIBLWE_w No Types Assigned https://www.youtube.com/watch?v=Iw8sIBLWE_w Exploit, Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration AND OR *cpe:2.3:a:ti:cc2640r2_software_development_kit:*:*:*:*:*:*:*:* versions up to (including) 3.30.00.20 OR cpe:2.3:h:ti:cc2640r2:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 12, 2020

    Action Type Old Value New Value
    Added Reference https://www.youtube.com/watch?v=Iw8sIBLWE_w [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 6.1
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.15 }} -0.00%

score

0.36212

percentile