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CVE-2025-5820

Status: AnalyzedHigh (8.8)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Acceso red adyacente (AV:A) sin privilegios previos permite bypass de autenticación Bluetooth ERTM (CWE-288). El atacante obtiene acceso no autorizado a funcionalidades del dispositivo XAV-AX8500.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account ManagementNetwork SegmentationApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser Training

Affected technologies (1)

Sony — Xav-ax8500 Firmware

CWEs

References

Raw JSON (NVD)

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