CVE-2025-5477

What it is

Sony XAV-AX8500 Bluetooth L2CAP Protocol Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Sony XAV-AX8500 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 implementation of the Bluetooth L2CAP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the elysian-bt-service process. Was ZDI-CAN-26286.

At a glance

Exploitability

Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-06-21 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:47 UTC Last updatedMost recent change to the record

Details

Published

2025-06-21 01:15 UTC

Last modified

2026-06-17 09:47 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-122

Record status

Analyzed

Affected

• Sony xav-ax8500 Firmware < 3.02.00

Attack profile CVSS 3.1 · 7.5

Attack vector

Adjacent network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High