The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1…
Priority LOW 30Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1 does not properly handle the reception of truncated LMP_SCO_Link_Request packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections (disabling the AB5301A inquiry and page scan procedures) via a crafted LMP packet. The user needs to manually perform a power cycle (restart) of the device to restore BT connectivity.
Why it matters now
EPSS 0.00694 53rd percentileScored 2026-11-07
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 · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:zh-jieli:fw-ac63_bt_sdk:*:*:*:*:*:*:*:* | up to 0.9.1 | Vulnerable | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6936:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6951:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6952:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6954:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6955:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6956:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6963:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6965:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6966:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
- cpe:2.3:o:zh-jieli:fw-ac63_bt_sdk:*:*:*:*:*:*:*:* Versions up to 0.9.1 Vulnerable ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6936:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6951:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6952:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6954:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6955:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6956:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6963:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6965:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6966:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:zh-jieli:ac6969:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6973:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6976:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6983:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
| cpe:2.3:h:zh-jieli:ac6986:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zh-jieli |
- cpe:2.3:h:zh-jieli:ac6969:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6973:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6976:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6983:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
- cpe:2.3:h:zh-jieli:ac6986:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zh-jieli
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34144
- 2026-10-03 Alias added: GHSA-3646-mf8v-hr3c
References
More Zh-jieli Fw-ac63 Bt Sdk vulnerabilities
- TI-2021-13285 The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C_DEMO_V1.0 does not… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-34144 · CVE Program
- CVE-2021-34144 · NVD
- FIRST EPSS
- GHSA-3646-mf8v-hr3c · 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