Auth bypass in Sony Xav-9500es
CVE-2026-18283
Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability. This vulnerability allows physically present attackers to bypass authorization on affected installations on Sony XAV-9500ES devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the udev rules. A crafted USB device connected to the system can trigger instantiation of otherwise restricted USB device types. An attacker can leverage this vulnerability to bypass authorization on the system. Was ZDI-CAN-28992.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.4 (Low). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.5% 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: 0.003 · change: +0.000
Affected products
- Sony Xav-9500es — versions 3.02.00
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-476/ (x_research-advisory)
- www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-se… (vendor-advisory)
Frequently asked questions
- What is CVE-2026-18283?
- CVE-2026-18283 is a low-severity vulnerability in Sony Xav-9500es, classified under Improper Authorization. CVSS score: 2.4/10. Published 2026-08-20.
- How severe is CVE-2026-18283?
- Low severity. CVSS v3 base score is 2.4 out of 10.