Shenzhen HCC Technology MPOS M6 PLUS Bluetooth missing authentication

published 2026-03-23 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-14394

cvss: 5.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-03-23)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Davim09/m6plusexploit/blob/main/docs/CVE-1-Authentication.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	2.3	CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	5.0	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	5.0	CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	4.3	AV:A/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	1.3	CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	5.0	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	4.3	AV:A/AC:H/Au:N/C:P/I:P/A:P

Affected products

Shenzhen HCC Technology MPOS M6 PLUS

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-287 Improper Authentication

References

github.com /Davim09/m6plusexploit/blob/main/docs/CVE-1-Authentication.md
exploit
vuldb.com /vuln/352419
vdb-entry
vuldb.com /vuln/352419/cti
signature, permissions-required
vuldb.com /submit/775433
third-party-advisory

Sources

CVE List CVE-2026-4582
NVD CVE-2026-4582

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary