(0Day) (Pwn2Own) Alpine iLX-F511 libanwbtstack.so prh_rfcomm_cc_process_test Out-Of-Bounds Read Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Alpine iLX-F511 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 prh_rfcomm_cc_process_test function. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
Additional Details
02/05/26 - ZDI reported the vulnerability to the vendor
06/07/26 - the vendor acknowledged the receipt of the report and asked for an extension
07/21/26 - ZDI requested an update on the status of the fix
10/15/26 - ZDI notified the vendor of the intention to publish the case as a 0-day advisory
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product
Disclosure Timeline
- 2026-02-04 - Vulnerability reported to vendor
- 2026-10-28 - Coordinated public release of advisory
- 2026-10-28 - Advisory Updated
Credit
Dong hee Kim and Jong geon Kim from team K
