CVE-2026-4584: Shenzhen HCC Technology MPOS M6 PLUS Cardholder Data cleartext transmission

Severity: low (CVSS 3.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-23 · updated 2026-06-17
Weakness: CWE-310

Description

A flaw has been found in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. This affects an unknown part of the component Cardholder Data Handler. Executing a manipulation can lead to cleartext transmission of sensitive information. The attack requires access to the local network. The attack requires a high level of complexity. It is indicated that the exploitability is difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

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

References

https://github.com/Davim09/m6plusexploit/blob/main/docs/CVE-3-DataExposure.md
https://vuldb.com/?ctiid.352421
https://vuldb.com/?id.352421
https://vuldb.com/?submit.775435

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