The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink…
Priority LOW 32CWE-120Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices accepts a pairing request with a key size greater than 16 bytes, allowing an attacker in radio range to cause a buffer overflow and denial of service (crash) via crafted packets.
Why it matters now
EPSS 0.01369 72nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:* | up to 3.4.0 | Vulnerable | Telink-semi |
| cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telink-semi |
| cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:* | up to 3.3 | Vulnerable | Telink-semi |
| cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telink-semi |
| cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:* | up to 3.4.0 | Vulnerable | Telink-semi |
| cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telink-semi |
| cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:* | up to 3.4.0 | Vulnerable | Telink-semi |
| cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telink-semi |
| cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:* | up to 1.3.0 | Vulnerable | Telink-semi |
| cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telink-semi |
- cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:* Versions up to 3.4.0 Vulnerable ·Telink-semi
- cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telink-semi
- cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:* Versions up to 3.3 Vulnerable ·Telink-semi
- cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telink-semi
- cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:* Versions up to 3.4.0 Vulnerable ·Telink-semi
- cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telink-semi
- cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:* Versions up to 3.4.0 Vulnerable ·Telink-semi
- cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telink-semi
- cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:* Versions up to 1.3.0 Vulnerable ·Telink-semi
- cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telink-semi
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19196
- 2026-10-03 Alias added: GHSA-2v47-vh6m-54xv
References
More Telink-semi Tlsr8232 Ble Sdk vulnerabilities
- TI-2019-13828 The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink… CVSS 3.1HIGH 8.8
Sources
- CVE-2019-19196 · CVE Program
- CVE-2019-19196 · NVD
- FIRST EPSS
- GHSA-2v47-vh6m-54xv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences