TI-2026-03986 Aliases CVE-2026-4582 GHSA-q5mc-rx2x-2mqv

Shenzhen HCC Technology MPOS M6 PLUS Bluetooth missing authentication

MEDIUM 45CWE-287Published 2026-03-23 · Updated 2026-04-18

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

A security vulnerability has been detected in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. Affected by this vulnerability is an unknown functionality of the component Bluetooth. Such manipulation leads to missing authentication. The attack must be carried out from within the local network. Attacks of this nature are highly complex. The exploitation appears to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00341 27th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Shenzhen HCC Technology	MPOS M6 PLUS	1V.31-N	—	No fix listed	CNA

MPOS M6 PLUS VendorShenzhen HCC Technology Affected 1V.31-N Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-4582
2026-10-03 Alias added: GHSA-q5mc-rx2x-2mqv

References

Exploit 1

https://github.com/Davim09/m6plusexploit/blob/main/docs/CVE-1-Authentication.md

TI-2026-71038 Rendered UI layer flaw in Shenzhen HCC MPOS M6 PLUS QR code display CVSS 4.0MEDIUM 5.1
TI-2026-03988 Shenzhen HCC Technology MPOS M6 PLUS Cardholder Data cleartext transmission CVSS 4.0LOW 2.3
TI-2026-03987 Shenzhen HCC Technology MPOS M6 PLUS Bluetooth authentication replay CVSS 4.0LOW 2.3

Sources

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