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CVE-2025-5820— Sony XAV-AX8500 Bluetooth ERTM Channel Authentication Bypass Vulnerability

Quick assessment

Affected
Sony XAV-AX8500
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sony XAV-AX8500是日本索尼（Sony）公司的一个数码多媒体接收器。 Sony XAV-AX8500存在安全漏洞，该漏洞源于蓝牙ERTM通道通信实现不当，可能导致认证绕过。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.36% · P28

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2025-5820

Vulnerability Information
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Vulnerability Title
Sony XAV-AX8500 Bluetooth ERTM Channel Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Sony XAV-AX8500 Bluetooth ERTM Channel 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 Bluetooth ERTM channel communication. The issue results from improper channel data initialization. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26285.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Sony XAV-AX8500 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sony XAV-AX8500是日本索尼（Sony）公司的一个数码多媒体接收器。 Sony XAV-AX8500存在安全漏洞，该漏洞源于蓝牙ERTM通道通信实现不当，可能导致认证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Sony XAV-AX8500 2.00.01 -

II. Public POCs for CVE-2025-5820

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III. Intelligence Information for CVE-2025-5820

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Same Patch Batch · Sony · 2025-06-21 · 6 CVEs total

CVE-2025-5478 Sony XAV-AX8500 Bluetooth SDP Protocol Integer Overflow Remote Code Execution Vulnerabilit
CVE-2025-5479 Sony XAV-AX8500 Bluetooth AVCTP Protocol Heap-based Buffer Overflow Remote Code Execution
CVE-2025-5475 Sony XAV-AX8500 Bluetooth Packet Handling Integer Overflow Remote Code Execution Vulnerabi
CVE-2025-5477 Sony XAV-AX8500 Bluetooth L2CAP Protocol Heap-based Buffer Overflow Remote Code Execution
CVE-2025-5476 Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability

IV. Related Vulnerabilities

Same product: XAV-AX8500
Same vendor: Sony
Same weakness: CWE-288

V. Comments for CVE-2025-5820

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