CVE-2026-18278
CVE-2026-18278
Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information 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 user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the device. Was ZDI-CAN-28990.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (14.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-471/ (x_research-advisory)
- www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-se… (vendor-advisory)
Frequently asked questions
- What is CVE-2026-18278?
- CVE-2026-18278 is a low-severity vulnerability, classified under Out-of-bounds Read. CVSS score: 3.5/10. Published 2026-08-20.
- How severe is CVE-2026-18278?
- Low severity. CVSS v3 base score is 3.5 out of 10.