Buffer overflow in Ti Cc2640r2
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 packets.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ti.com/tool/LAUNCHXL-CC2640R2 (Product, Vendor Advisory)
- asset-group.github.io/disclosures/sweyntooth/ (Third Party Advisory)
- www.youtube.com/watch (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17520?
- CVE-2019-17520 is a medium-severity vulnerability in Ti Cc2640r2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2020-02-10.
- How severe is CVE-2019-17520?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2019-17520 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.