Buffer overflow in Sony Xav-Ax8500
CVE-2025-5479
Sony XAV-AX8500 Bluetooth AVCTP Protocol Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-AX8500 devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of the Bluetooth AVCTP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26290.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% 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-25-356/ (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-2025-5479?
- CVE-2025-5479 is a high-severity vulnerability in Sony Xav-Ax8500, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-06-21.
- How severe is CVE-2025-5479?
- High severity. CVSS v3 base score is 7.5 out of 10.