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TI-2021-11787 Aliases CVE-2021-31785GHSA-8235-3268-fjf9

The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets does not…

Priority LOW 29CWE-667Published · 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-667 and the CVSS impact.

Summary

The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets does not properly handle the reception of multiple LMP_host_connection_req packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device via crafted LMP packets. Manual user intervention is required to restart the device and restore Bluetooth communication.

Why it matters now

EPSS 0.00446 39th 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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableActions-semi
cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:*not specified by NVDRunning onActions-semi
cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableActions-semi
cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:*not specified by NVDRunning onActions-semi
cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableActions-semi
cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:*not specified by NVDRunning onActions-semi
cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableActions-semi
cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:*not specified by NVDRunning onActions-semi
cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableActions-semi
cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:*not specified by NVDRunning onActions-semi
  • cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Actions-semi
  • cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Actions-semi
  • cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Actions-semi
  • cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Actions-semi
  • cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Actions-semi
  • cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Actions-semi
  • cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Actions-semi
  • cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Actions-semi
  • cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Actions-semi
  • cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Actions-semi

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31785
  2. 2026-10-03 Alias added: GHSA-8235-3268-fjf9

References

Advisory 3

  • TI-2021-11789 The Bluetooth Classic implementation on Actions ATS2815 chipsets does not properly handle… CVSS 3.1MEDIUM 6.5
  • TI-2021-11788 The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does… CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences