ZDI-26-476: (Pwn2Own) Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability
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.
AI Analysis
Technical Summary
CVE-2026-18283 is an authorization bypass vulnerability affecting Sony XAV-9500ES devices. The issue lies in the udev rules, where a crafted USB device can cause the system to instantiate otherwise restricted USB device types without requiring authentication. This allows an attacker with physical access to bypass authorization controls on the device. The vulnerability has a CVSS score of 2.4, indicating low severity. Sony has released an update to fix this issue.
Potential Impact
An attacker with physical access can bypass authorization on affected Sony XAV-9500ES devices by connecting a specially crafted USB device. No authentication is required to exploit this vulnerability. The impact is limited to authorization bypass without direct confidentiality or availability impact.
Mitigation Recommendations
Sony has issued an update to correct this vulnerability. Users of Sony XAV-9500ES devices should apply the official update provided by Sony to remediate this issue.
ZDI-26-476: (Pwn2Own) Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18283 is an authorization bypass vulnerability affecting Sony XAV-9500ES devices. The issue lies in the udev rules, where a crafted USB device can cause the system to instantiate otherwise restricted USB device types without requiring authentication. This allows an attacker with physical access to bypass authorization controls on the device. The vulnerability has a CVSS score of 2.4, indicating low severity. Sony has released an update to fix this issue.
Potential Impact
An attacker with physical access can bypass authorization on affected Sony XAV-9500ES devices by connecting a specially crafted USB device. No authentication is required to exploit this vulnerability. The impact is limited to authorization bypass without direct confidentiality or availability impact.
Mitigation Recommendations
Sony has issued an update to correct this vulnerability. Users of Sony XAV-9500ES devices should apply the official update provided by Sony to remediate this issue.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-476/","fetched":true,"fetchedAt":"2026-07-30T15:56:13.324Z","wordCount":181}
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a6b74c59c2644c7f84cc2c1
Added to database: 07/30/2026, 15:59:01 UTC
Last enriched: 08/15/2026, 05:16:29 UTC
Last updated: 09/13/2026, 22:01:32 UTC
Views: 73
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.