CVE-2025-5476

Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability

HIGH
8.8
CVSS Score
Published: June 21, 2025 at 12:09 AM UTC
Updated: June 17, 2026 at 09:47 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 Improper Isolation 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 ACL-U links. The issue results from the lack of L2CAP channel isolation. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26284.

Affected

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

2.00.01 ≤ 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-653

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