CVE-2026-4583
CVE-2026-4583 is a medium-severity vulnerability with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.
Key facts
- Severity: Medium (CVSS 3.x base score 5.0)
- CVSS v2: 4.3
- CVSS v4: 1.3
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-14399
- Weakness: CWE-287
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-4583?
- 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.
- How severe is CVE-2026-4583?
- CVE-2026-4583 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-4583 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-4583?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-4583 have an EU (EUVD) identifier?
- Yes. CVE-2026-4583 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14399.
- When was CVE-2026-4583 published?
- CVE-2026-4583 was published on 2026-03-23 and last updated on 2026-06-17.
References
- https://github.com/Davim09/m6plusexploit/blob/main/docs/CVE-2-Replay.md
- https://vuldb.com/?ctiid.352420
- https://vuldb.com/?id.352420
- https://vuldb.com/?submit.775434
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