ZDI-25-355: (Pwn2Own) Sony XAV-AX8500 Bluetooth SDP Protocol Integer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-AX8500 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the Bluetooth SDP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-AX8500 devices. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2025-5478.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-355?
The severity of ZDI-25-355 is critical due to the potential for remote code execution without authentication.
How do I fix ZDI-25-355?
To fix ZDI-25-355, users should apply the latest security update provided by Sony for the XAV-AX8500.
Who is affected by ZDI-25-355?
ZDI-25-355 affects installations of the Sony XAV-AX8500 that are vulnerable to the flaw in the Bluetooth SDP protocol.
Can ZDI-25-355 be exploited remotely?
Yes, ZDI-25-355 can be exploited by network-adjacent attackers without the need for authentication.
What is the root cause of ZDI-25-355?
The root cause of ZDI-25-355 is a flaw in the implementation of the Bluetooth SDP protocol on affected devices.