CVE-2025-8477
📋 TL;DR
A stack-based buffer overflow vulnerability in Alpine iLX-507's vCard parsing allows network-adjacent attackers to execute arbitrary code as root when the device connects to a malicious Bluetooth source. This affects Alpine iLX-507 devices with vulnerable firmware. User interaction is required as the target must initiate a Bluetooth connection to the attacker's device.
💻 Affected Systems
- Alpine iLX-507
📦 What is this software?
Ilx 507 Firmware by Alpsalpine
⚠️ Risk & Real-World Impact
Worst Case
Full root compromise of the Alpine iLX-507 device, allowing complete control over the system, data exfiltration, and potential lateral movement to connected systems.
Likely Case
Remote code execution with root privileges on the affected device, enabling installation of persistent malware, data theft, or device bricking.
If Mitigated
Limited impact if Bluetooth connectivity is restricted and devices are not connecting to untrusted sources.
🎯 Exploit Status
Exploitation requires Bluetooth proximity and user interaction to connect to malicious device. ZDI-CAN-26324 tracking suggests active research.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available at time of analysis
Restart Required: Yes
Instructions:
1. Monitor Alpine Electronics security advisories. 2. Apply firmware update when available. 3. Restart device after patching.
🔧 Temporary Workarounds
Disable Bluetooth connectivity
allPrevent exploitation by disabling Bluetooth functionality on affected devices
Navigate to Settings > Bluetooth > Turn Off
Restrict Bluetooth pairing
allOnly allow connections to trusted, known Bluetooth devices
Navigate to Settings > Bluetooth > Paired Devices > Remove unknown devices
🧯 If You Can't Patch
- Physically isolate devices from untrusted Bluetooth sources
- Implement network segmentation to limit lateral movement if device is compromised
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory when available. Currently no public detection method.Check Version:
Navigate to Settings > System > About to view firmware versionVerify Fix Applied:
Verify firmware version matches patched version from vendor advisory📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth connection attempts
- Process crashes related to vCard parsing
- Unexpected root privilege escalations
Network Indicators:
- Suspicious Bluetooth MAC addresses attempting connections
- Unusual outbound network traffic from device post-Bluetooth connection
SIEM Query:
Not applicable - embedded device with limited logging capabilities