HOMEVULNERABILITIESCVE-2020-16630
MEDIUM

CVE-2020-16630

CWE-863Published: September 20, 2021· Updated: Jun 17, 2026

6.8
CVSS v3.1

Official Description

TI’s BLE stack caches and reuses the LTK’s property for a bonded mobile. A LTK can be an unauthenticated-and-no-MITM-protection key created by Just Works or an authenticated-and-MITM-protection key created by Passkey Entry, Numeric Comparison or OOB. Assume that a victim mobile uses secure pairing to pair with a victim BLE device based on TI chips and generate an authenticated-and-MITM-protection LTK. If a fake mobile with the victim mobile’s MAC address uses Just Works and pairs with the victim device, the generated LTK still has the property of authenticated-and-MITM-protection. Therefore, the fake mobile can access attributes with the authenticated read/write permission.

NVD Source

Technical Analysis

CVE-2020-16630 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 6.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Vendors & Products

ti7 product(s)
15.4-stackble5-stackdynamic multi-protocal managereasylinkopenthreadz-stackreal-time operating system
Source: NVD CPE · 7 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2020-16630
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-863
CISA KEVNo
Affected1 vendor(s)
PublishedSep 20, 2021

Related CVEs (CWE-863)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-16630 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.