MEDIUM
CVE-2019-17520
CWE-120Published: February 10, 2020· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official 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.
Technical Analysis
CVE-2019-17520 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
ti2 product(s)
cc2640r2 software development kitcc2640r2
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (6)
→
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
Quick Facts
CVE IDCVE-2019-17520
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-120
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 10, 2020
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-17520 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.