CVE-2025-5476

21.06.2025, 01:15

Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability. 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. Was ZDI-CAN-26284.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.3 MEDIUM	ADJACENT_NETWORK	LOW	NONE	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
zdi	CNA	6.3 MEDIUM				CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Common Weakness Enumeration

CWE-653 - Improper Isolation or Compartmentalization
The product does not properly compartmentalize or isolate functionality, processes, or resources that require different privilege levels, rights, or permissions.

References

https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax8500/software/00344092

https://www.zerodayinitiative.com/advisories/ZDI-25-357/