CVE-2024-23963: Alpsalpine Ilx-f509 Firmware

High severity, CVSS 8.0. EPSS: 0.5% chance of exploitation in the next 30 days.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Alpine Halo9 devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the PBAP_DecodeVCARD function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

Affected products

Published 2025-01-31. Last modified 2026-06-17.