Is CVE-2025-5477 actively exploited?

No active exploitation of CVE-2025-5477 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-5477 be exploited remotely?

Partially. CVE-2025-5477 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2025-5477?

CVE-2025-5477 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2025-5477

CWE-122Published: June 21, 2025· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2025-5477 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.5.