Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-18283
StatePUBLISHED
Assignerzdi
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-20 17:17:24 UTC
Updated2026-08-21 21:16:55 UTC
DescriptionSony 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.

Risk And Classification

Primary CVSS: v3.0 2.4 LOW from [email protected]

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.003120000 probability, percentile 0.239900000 (date 2026-08-23)

Problem Types: CWE-285 | CWE-285 CWE-285: Improper Authorization

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary2.4LOWCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.0CNACVSS2.4LOWCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.0 Breakdown

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Sony XAV-9500ES affected 3.02.00 Not specified

References

ReferenceSourceLinkTags
www.zerodayinitiative.com/advisories/ZDI-26-476 [email protected] www.zerodayinitiative.com
www.sony.com/electronics/support/mobile-cd-players-digital-media-players-x... [email protected] www.sony.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report