CVE-2025-5476 json
Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability
published 2025-06-21 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-18881
- cvss
- 6.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- sony xav-ax8500_firmware 3.02.00
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 16 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.3 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Sony XAV-AX8500
Classification
- Weakness
-
- CWE-653 Improper Isolation or Compartmentalization
References
-
sony.com
/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax8500/software/00344092
vendor-advisory, patch
-
zerodayinitiative.com
/advisories/ZDI-25-357/
third-party-advisory
Sources
- CVE List CVE-2025-5476
- NVD CVE-2025-5476
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