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CVE-2026-4583— Shenzhen HCC Technology MPOS M6 PLUS Bluetooth authentication replay

Quick assessment

Affected
Shenzhen HCC Technology MPOS M6 PLUS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HCCTG MPOS M6 PLUS是中国华辰联创（HCCTG）公司的一款移动支付终端设备。 HCCTG MPOS M6 PLUS 1V.31-N版本存在安全漏洞，该漏洞源于组件Bluetooth Handler存在身份验证绕过。

CVSS 5.0 · Medium EPSS 0.41% · P34
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I. Basic Information for CVE-2026-4583

Vulnerability Information
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Vulnerability Title
Shenzhen HCC Technology MPOS M6 PLUS Bluetooth authentication replay
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
HCCTG MPOS M6 PLUS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HCCTG MPOS M6 PLUS是中国华辰联创（HCCTG）公司的一款移动支付终端设备。 HCCTG MPOS M6 PLUS 1V.31-N版本存在安全漏洞，该漏洞源于组件Bluetooth Handler存在身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N -

II. Public POCs for CVE-2026-4583

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III. Intelligence Information for CVE-2026-4583

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Vendor Advisories for CVE-2026-4583 (2)

Exploits & Public PoCs for CVE-2026-4583 (1)

Same Patch Batch · Shenzhen HCC Technology · 2026-03-23 · 3 CVEs total

CVE-2026-4582 5.0 MEDIUM Shenzhen HCC Technology MPOS M6 PLUS Bluetooth missing authentication
CVE-2026-4584 3.1 LOW Shenzhen HCC Technology MPOS M6 PLUS Cardholder Data cleartext transmission

IV. Related Vulnerabilities

Same product: MPOS M6 PLUS
Same vendor: Shenzhen HCC Technology
Same weakness: CWE-294

V. Comments for CVE-2026-4583

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