Vulnerability in Sony Xav-Ax8500
CVE-2025-5476
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Sony Xav-Ax8500 — versions 2.00.01
- Sony Xav-Ax8500 Firmware
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-25-357/ (x_research-advisory, Third Party Advisory)
- www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-se… (vendor-advisory, Patch)
Frequently asked questions
- What is CVE-2025-5476?
- CVE-2025-5476 is a high-severity vulnerability in Sony Xav-Ax8500, classified under CWE-653. CVSS score: 8.8/10. Published 2025-06-21.
- How severe is CVE-2025-5476?
- High severity. CVSS v3 base score is 8.8 out of 10.