CVE-2025-5477: (Pwn2Own) Sony XAV-AX8500 Bluetooth L2CAP Protocol Heap-based Buffer Overflow Remote Code Execution Vulnerability
Sony XAV-AX8500 Bluetooth L2CAP Protocol Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Sony XAV-AX8500 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 implementation of the Bluetooth L2CAP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the elysian-bt-service process. Was ZDI-CAN-26286.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-5477?
CVE-2025-5477 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2025-5477?
To fix CVE-2025-5477, update your Sony XAV-AX8500 device to the latest firmware provided by Sony.
What type of vulnerability is CVE-2025-5477?
CVE-2025-5477 is a heap-based buffer overflow vulnerability related to the Bluetooth L2CAP protocol.
Who is affected by CVE-2025-5477?
The vulnerability affects users of the Sony XAV-AX8500 multimedia receiver.
Can CVE-2025-5477 be exploited remotely?
Yes, CVE-2025-5477 can be exploited by network-adjacent attackers who can pair their malicious device.