ZDI-CAN-29072: ZDI-26-474: (Pwn2Own) Sony XAV-9500ES l2_reassemble_sdu 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 Bluetooth L2CAP 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-2026-18281.
— 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-26-474
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-29072?
The severity of ZDI-CAN-29072 is rated at 68, indicating a significant risk level.
How do I fix ZDI-CAN-29072?
To mitigate ZDI-CAN-29072, ensure your Sony XAV-9500ES device is updated with the latest firmware provided by Sony.
What type of vulnerability is ZDI-CAN-29072?
ZDI-CAN-29072 is a heap-based buffer overflow vulnerability that allows remote code execution.
Who can exploit ZDI-CAN-29072?
Network-adjacent attackers with the ability to pair a malicious Bluetooth device to the Sony XAV-9500ES can exploit ZDI-CAN-29072.
What devices are affected by ZDI-CAN-29072?
ZDI-CAN-29072 specifically affects the Sony XAV-9500ES device.