Buffer overflow in Sony Xav-9500es
CVE-2026-18281
Sony XAV-9500ES l2_reassemble_sdu Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES 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 handling of Bluetooth L2CAP packets. 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 device. Was ZDI-CAN-29072.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Sony Xav-9500es — versions 3.02.00
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory)
- zdi-disclosures@trendmicro.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-18281?
- CVE-2026-18281 is a high-severity vulnerability in Sony Xav-9500es, classified under Heap-based Buffer Overflow. CVSS score: 8.0/10. Published 2026-08-20.
- How severe is CVE-2026-18281?
- High severity. CVSS v3 base score is 8.0 out of 10.