CVE-2026-18278: (Pwn2Own) Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability
Sony XAV-9500ES prhl2decodepacket 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. Was ZDI-CAN-28990.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Mitigate exploitation by preventing unauthorized pairing of Bluetooth devices to the Sony XAV-9500ES (e.g., restrict/disable Bluetooth pairing and ensure only trusted devices can pair).
- Compensating control
Apply the ZDI mitigation guidance referenced by ZDI-CAN-28990 for this Bluetooth L2CAP out-of-bounds read issue, since the material does not provide a specific fixed version or patch identifier.