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Ilx 507 FirmwareOperating system · Alpsalpine

CVE-2025-8477

HIGH · 7.4 CVSS v3.0 Published 2025-08-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated

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
Alpine iLX-507 vCard Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Alpine iLX-507 devices. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the parsing of vCard data. The issue results from the lack of proper validation of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-26324.

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 · high confidence

Stack-based buffer overflow in Alpine iLX-507 head unit vCard parsing. The vulnerability results from insufficient validation of user-supplied data before copying to a fixed-length stack buffer during Bluetooth vCard processing. Successful exploitation allows remote code execution as root when a user connects the device to a malicious Bluetooth device.

MitigationApply vendor firmware updates when available. Until then, avoid pairing with untrusted Bluetooth devices and consider network isolation. Users cannot implement a direct code-level fix; this requires an official Alpine firmware patch.

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

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Ilx 507 FirmwareOperating system
Affected:= 6.0.000

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
Low
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/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. Confirm device model is Alpine iLX-507
    Navigate to the head unit Settings > System > Unit Info or check the product label on the device to verify the exact model number matches 'iLX-507' or 'Ilx 507'
    Affected if Device model is Alpine iLX-507
  2. Check firmware version equals 6.0.000
    Go to Settings > System > Firmware Version or Settings > About on the head unit display. Compare the displayed version number to '6.0.000'
    Affected if Firmware version is exactly 6.0.000
  3. Verify Bluetooth is enabled
    Check Settings > Bluetooth on the head unit. Confirm the Bluetooth toggle is in the ON position
    Affected if Bluetooth is currently enabled on the device
  4. Review paired Bluetooth devices
    Navigate to Settings > Bluetooth > Paired Devices. Examine the list for any unknown or unexpected device pairings
    Affected if There are untrusted or unrecognized Bluetooth devices paired
  5. Check for unauthorized access indicators
    Review any available system logs or connection history for Bluetooth activities from unknown sources, or check if the device exhibits unusual behavior such as unexpected restarts or crashes after Bluetooth use
    Affected if There are signs of unauthorized Bluetooth access or unexpected device behavior

You are affected if the device is an Alpine iLX-507 running firmware version 6.0.000 with Bluetooth enabled, as this specific version contains the vulnerable vCard parsing code.

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 firmware updates when available. Until then, avoid pairing with untrusted Bluetooth devices and consider network isolation. Users cannot implement a direct code-level fix; this requires an official Alpine firmware patch.

Fix this in Ilx 507 Firmware Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,280
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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-2025-8477 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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