CVE-2026-4584 Shenzhen HCC Technology MPOS M6 PLUS Cardholder Data cleartext transmission
Attackers on the local network can intercept cardholder data transmitted in cleartext by the MPOS M6 PLUS terminal.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4584?
CVE-2026-4584 is a low-severity vulnerability in Shenzhen HCC Technology MPOS M6 PLUS, published on 23 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-4584?
How do I fix CVE-2026-4584?
No fix has been published for CVE-2026-4584 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4584 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4584 exists.
Sources
Also known as GHSA-vmxp-224r-5qhc.