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.
Conclusion & alert: CVE-2024-23963 is rated Moderate Risk (42/100): CVSS High severity, with low exploitation likelihood (EPSS 0.11%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-21 | 0.45% | 0.11% | -0.35% |
| 2 | 2025-11-18 | 0.10% | 0.45% | +0.36% |
| 3 | 2025-03-25 | — | 0.10% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.0 | 3.1 | HIGH |
|
2.1 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| alpsalpine | ilx-f509_firmware | — | cpe:2.3:o:alpsalpine:ilx-f509_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-24-850/ | Third Party Advisory |