CVE-2019-17520
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…
Does this matter?
Lower severity and a low EPSS score (1.81%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.81% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- ti/cc2640r2 software development kit
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.ti.com/tool/LAUNCHXL-CC2640R2Product, Vendor Advisory
- https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
- https://www.youtube.com/watch?v=Iw8sIBLWE_wExploit, Third Party Advisory
- http://www.ti.com/tool/LAUNCHXL-CC2640R2Product, Vendor Advisory
- https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
- https://www.youtube.com/watch?v=Iw8sIBLWE_wExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.