Bluetooth L2CAP Protocol Vulnerability in Sony XAV-AX8500
CVE-2025-5477

7.5HIGH

Key Information:

Vendor

Sony

Status
Xav-ax8500
Vendor
CVE Published:
21 June 2025

What is CVE-2025-5477?

The Sony XAV-AX8500 is affected by a Bluetooth vulnerability stemming from a flaw in the L2CAP protocol implementation. This vulnerability arises from inadequate validation of the data length when it is supplied by the user, allowing an attacker to exploit the heap-based buffer overflow. Once a malicious Bluetooth device is paired with the target, an attacker can execute arbitrary code in the context of the elysian-bt-service process, compromising the affected device's security.

Affected Version(s)

XAV-AX8500 2.00.01

References

https://www.zerodayinitiative.com/advisories/ZDI-25-354/
x_research-advisory
https://www.sony.com/electronics/support/mobile-cd-player...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

CVSS V3.0

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

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CVE-2025-5477 : Bluetooth L2CAP Protocol Vulnerability in Sony XAV-AX8500