Low severity · published Aug 20, 2026
CVE-2026-18283
Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability
2.4
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XA
XAV-9500ES · Sony
3.02.00 · source: vendor
In the news
VulnerabilityLow
ZDI-26-476: (Pwn2Own) 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 ZDI has assigned a CVSS rating of 2.4. The following CVEs are assigned: CVE-2026-18283.
Jul 29, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18283
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18283
www.sony.com
https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-9500es/software/00274922
www.zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-26-476/
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