CVE-2025-5820

Sony XAV-AX8500 Bluetooth ERTM Channel Authentication Bypass Vulnerability

HIGH
8.8
CVSS Score
Published: June 21, 2025 at 12:09 AM UTC
Updated: June 17, 2026 at 09:48 AM UTC
2 products affected across 1 vendorXav AX8500 FirmwareXav-Ax8500

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.00.1 ≤ v < 3.02.002.00.01
Affected range stops below 3.02.00, so it looks safe — our inference, not a vendor statement
sony-xav-ax8500 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-288

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