CVE-2026-4584 | Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N Cardholder Data cleartext transmission

VDB-352421 · CVE-2026-4584 · GCVE-100-352421 SHENZHEN HCC TECHNOLOGY MPOS M6 PLUS 1V.31-N CARDHOLDER DATA CLEARTEXT TRANSMISSION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 2.8 $0-$5k 2.05+ Summaryinfo A vulnerability classified as problematic has been found in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. This vulnerability affects unknown code of the component Cardholder Data Handler. The manipulation leads to cleartext transmission. This vulnerability is documented as CVE-2026-4584. The attack requires being on the local network. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. It has been rated as problematic. This issue affects some unknown processing of the component Cardholder Data Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality. The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-4584. The exploitation is known to be difficult. Access to the local network is required for this attack to succeed. No form of authentication is needed for a successful exploitation. Technical details are unknown but an exploit is available. MITRE ATT&CK project uses the attack technique T1040 for this issue. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Shenzhen HCC Technology Name MPOS M6 PLUS Version 1V.31-N CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.1 VulDB Meta Temp Score: 2.8 VulDB Base Score: 3.1 VulDB Temp Score: 2.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cleartext transmission CWE: CWE-319 / CWE-310 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially Availability: 🔒 Status: Proof-of-Concept Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/22/2026 Advisory disclosed 03/22/2026 +0 days VulDB entry created 03/22/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-4584 (🔒) GCVE (CVE): GCVE-0-2026-4584 GCVE (VulDB): GCVE-100-352421 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/22/2026 10:04 Changes: 03/22/2026 10:04 (53) Complete: 🔍 Submitter: davimo Cache ID: 99:779:101 Submitinfo Accepted Submit #775435: Shenzhen HCC Technology Co., Ltd M6PLUS MPOS M6PLUS-FW-1V.31-N Cleartext Sensitive Data Transmission (by davimo) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸