Improper AuthenticationWeakness · CWE-287

CVE-2024-45347

CRITICAL · 9.6 CVSS v3.1 Published 2025-06-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An unauthorized access vulnerability exists in the Xiaomi Mi Connect Service APP. The vulnerability is caused by the validation logic is flawed and can be exploited by attackers to Unauthorized access to the victim’s device.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A critical unauthorized access vulnerability exists in Xiaomi Mi Connect Service APP due to flawed validation logic. Attackers can exploit this to gain unauthorized access to victim devices without proper authentication.

MitigationApply vendor-supplied patch/update to Mi Connect Service APP when released; consider disabling the service if exposed externally until patch is available.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Mi Connect Service APP is installed
    Check device/application inventory for Xiaomi Mi Connect Service APP. On Android, go to Settings > Apps > All Apps and search for Mi Connect or Xiaomi Connect. On iOS, check installed apps for Mi Connect.
    Affected if Mi Connect Service APP is present on the device or system
  2. Determine installed application version
    Open the Mi Connect Service APP, go to Settings > About > Version info, or view the app in the app store/Google Play Store to see the current installed version. Record the version number.
    Affected if Version number cannot be determined or is lower than vendor-published patched version (check Xiaomi security advisory for specific version)
  3. Check if service is network-exposed
    Review network configuration and firewall rules. Check if Mi Connect Service is bound to external/network interfaces or if port forwarding/DMZ is configured on router for Xiaomi device management ports (commonly 18888, 54321, or vendor-specific ports).
    Affected if Service is accessible from external networks without VPN or proper network segmentation
  4. Verify authentication configuration
    Within Mi Connect Service APP settings, review account binding, login verification, and authentication settings. Check if any test mode or debug features are enabled that may bypass authentication.
    Affected if Authentication is disabled, in test mode, or improperly configured allowing unauthenticated access

User is affected if Mi Connect Service APP is installed AND (running an unpatched version OR exposed to untrusted networks with weak authentication settings).

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-supplied patch/update to Mi Connect Service APP when released; consider disabling the service if exposed externally until patch is available.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-45347 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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