ZDI-26-471: (Pwn2Own) Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows network-adjacent attackers to disclose sensitive information 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 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 the device.
Other sources
This vulnerability allows network-adjacent attackers to disclose sensitive information 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 3.5. The following CVEs are assigned: CVE-2026-18278.
— 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-26-471 - Compensating control
Mitigate by preventing a malicious Bluetooth device from being able to pair with the Sony XAV-9500ES (e.g., disable Bluetooth pairing or restrict pairing to trusted devices only).
Event History
Frequently Asked Questions
What is the severity of ZDI-26-471?
The severity of ZDI-26-471 is rated as 18, indicating a critical risk level.
How do I fix ZDI-26-471?
To fix ZDI-26-471, ensure your Sony XAV-9500ES device is updated with the latest security patches from Sony.
What type of vulnerability is ZDI-26-471?
ZDI-26-471 is an Out-Of-Bounds Read vulnerability that can lead to information disclosure.
Who can exploit ZDI-26-471?
ZDI-26-471 can be exploited by network-adjacent attackers who can pair a malicious Bluetooth device with the target Sony XAV-9500ES device.
What devices are affected by ZDI-26-471?
ZDI-26-471 specifically affects Sony XAV-9500ES devices.