Advisory Details

June 11th, 2025

(Pwn2Own) Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability

CVE ID	CVE-2025-5476
CVSS SCORE	6.3, AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS	Sony
AFFECTED PRODUCTS	XAV-AX8500
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to bypass authentication on affected Sony XAV-AX8500 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of ACL-U links. The issue results from the lack of L2CAP channel isolation. An attacker can leverage this vulnerability to bypass authentication on the system.
ADDITIONAL DETAILS	Sony has issued an update to correct this vulnerability. More details can be found at: https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax8500/software/00344092
DISCLOSURE TIMELINE	2025-01-30 - Vulnerability reported to vendor 2025-06-11 - Coordinated public release of advisory 2025-06-11 - Advisory Updated
CREDIT	Mikhail Evdokimov (@konatabrk) from PCAutomotive

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