CVE-2026-4583

MEDIUM

Shenzhen HCC Technology MPOS M6 PLUS Bluetooth authentication replay

Title source: cna

Description

A vulnerability was detected in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. Affected by this issue is some unknown functionality of the component Bluetooth Handler. Performing a manipulation results in authentication bypass by capture-replay. The attack must originate from the local network. The attack is considered to have high complexity. The exploitation is known to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

References (4)

Core 4

Core References

Vdb Entry vdb-entry

VDB-352420 | Shenzhen HCC Technology MPOS M6 PLUS Bluetooth authentication replay

https://vuldb.com/?id.352420

Signature, Permissions Required signature permissions-required

VDB-352420 | CTI Indicators (IOB, IOC, TTP)

https://vuldb.com/?ctiid.352420

Third Party Advisory third-party-advisory

Submit #775434 | Shenzhen HCC Technology Co., Ltd M6PLUS MPOS M6PLUS-FW-1V.31-N Missing Anti-Replay Protection

https://vuldb.com/?submit.775434

Exploit exploit

https://github.com/Davim09/m6plusexploit/blob/main/docs/CVE-2-Replay.md

View Exploit ZIP pw:eip

Scores

CVSS v3 5.0

EPSS 0.0029

EPSS Percentile 20.3%

Attack Vector ADJACENT_NETWORK

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-287 CWE-294

Status published

Products (1)

Shenzhen HCC Technology/MPOS M6 PLUS 1V.31-N

Published Mar 23, 2026

Tracked Since Mar 23, 2026