TI’s BLE stack caches and reuses the LTK’s property for a bonded mobile.
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ti:15.4-stack:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:a:ti:ble5-stack:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:a:ti:dynamic_multi-protocal_manager:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:a:ti:easylink:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:a:ti:openthread:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:a:ti:z-stack:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
- cpe:2.3:a:ti:15.4-stack:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:a:ti:ble5-stack:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:a:ti:dynamic_multi-protocal_manager:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:a:ti:easylink:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:a:ti:openthread:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:a:ti:z-stack:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-16630
- 2026-10-03 Alias added: GHSA-h5cr-94cg-hxmr
References
Sources
- CVE-2020-16630 · CVE Program
- CVE-2020-16630 · NVD
- FIRST EPSS
- GHSA-h5cr-94cg-hxmr · GitHub Advisory Database · CC BY 4.0
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