Vulnerability · Published Aug 20, 2026 · Assigned by zdi

CVE-2026-18283Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability

Low 2.4

In plain English

A low-severity security flaw in XAV-9500ES from Sony. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.0)2.4Low

Exploit odds (30 days)0.3%top 80.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Sony	XAV-9500ES	3.02.00

Weakness: CWE-285 · Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

ZDI-26-476 x_research-advisory
vendor-provided URL vendor-advisory