Security readout for executives and security teams
Plain-English summary
CVE-2026-4582 affects Shenzhen HCC Technology MPOS M6 PLUS firmware 1V.31-N. The Bluetooth component reportedly lacks proper authentication, potentially allowing a nearby attacker to affect confidentiality, integrity, and availability at a limited level. The rated severity is medium because exploitation is described as highly complex and proximity-dependent.
Executive priority
Treat as a targeted, proximity-dependent payment-device risk. Prioritize asset identification and vendor follow-up over emergency response unless these devices are broadly deployed or located in uncontrolled public areas.
Technical view
The issue is classified as missing authentication / missing cryptographic authentication in the Bluetooth component, mapped to CWE-287 and CWE-306. CVSS 3.1 is 5.0 with adjacent attack vector, high complexity, no privileges, and no user interaction. VulDB reports proof-of-concept availability, but not confirmed active exploitation.
Likely exposure
Exposure is limited to organizations using MPOS M6 PLUS devices on firmware 1V.31-N where Bluetooth is enabled or reachable by nearby attackers. The sources do not identify other affected versions or products.
Exploitation context
Sources describe exploitation as difficult and requiring adjacent/local network proximity. CISA KEV status is false in the provided data. A public GitHub reference is listed, but the sources do not show confirmed exploitation in the wild.
Researcher notes
Evidence is narrow: affected functionality is described as unknown within Bluetooth, and the vendor reportedly did not respond. No official fix is named in the provided sources. Avoid assuming broader product impact beyond MPOS M6 PLUS 1V.31-N.
Mitigation direction
- Inventory MPOS M6 PLUS devices and identify firmware version 1V.31-N.
- Check Shenzhen HCC Technology or device supplier guidance for updates or compensating controls.
- Disable Bluetooth if not operationally required and supported by the device.
- Restrict physical and wireless proximity to payment devices in sensitive environments.
- Monitor vendor and VulDB entries for patch or advisory updates.
Validation and detection
- Confirm whether MPOS M6 PLUS devices are present in the environment.
- Record firmware versions and Bluetooth operational status.
- Review payment-device deployment locations for unauthorized nearby access risk.
- Check whether vendor documentation lists an update after 1V.31-N.
- Track CVE and VulDB records for changed exploit or remediation status.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-4582 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R1.63.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5MediumVector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Source materials
- CVE List V5 sourceCVE List V5
- VDB-352419 | Shenzhen HCC Technology MPOS M6 PLUS Bluetooth missing authenticationCVE reference · vdb-entry
- VDB-352419 | CTI Indicators (IOB, IOC)CVE reference · signature, permissions-required
- Submit #775433 | Shenzhen HCC Technology Co., Ltd M6PLUS MPOS M6PLUS-FW-1V.31-N Missing Cryptographic AuthenticationCVE reference · third-party-advisory
- https://github.com/Davim09/m6plusexploit/blob/main/docs/CVE-1-Authentication.mdCVE reference · exploit
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.