ZDI-26-475: (Pwn2Own) Sony XAV-9500ES AVRCP_Br_Response_Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES 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 handling of AVRCP packets. 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 device.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES 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 ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2026-18282.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ZDI-26-475
Event History
Frequently Asked Questions
What is the severity of ZDI-26-475?
The severity of ZDI-26-475 is rated at 77, indicating a high risk for affected systems.
How do I fix ZDI-26-475?
To mitigate ZDI-26-475, update the firmware of the Sony XAV-9500ES to the latest version released by the manufacturer.
What are the consequences of exploiting ZDI-26-475?
Exploiting ZDI-26-475 allows attackers to execute arbitrary code on the Sony XAV-9500ES devices, potentially compromising their functionality.
Who is affected by ZDI-26-475?
ZDI-26-475 affects installations of the Sony XAV-9500ES that allow Bluetooth pairing.
How does ZDI-26-475 work?
ZDI-26-475 works by exploiting a heap-based buffer overflow in the AVRCP_Br_Response_Parser when a malicious Bluetooth device is paired.