CVE-2026-18284
Received Received - Intake

Command Injection in Sony XAV-9500ES Firmware

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
Sony XAV-9500ES Crash Dump Handler Command Injection Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of process crash dumps. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-29061.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-18284
EUVD
EUVD-2026-63431

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
sony xav-9500es *
sony xav-9500es to 2026-07-29 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This is a local privilege escalation vulnerability in Sony XAV-9500ES devices. It exists in the crash dump handler due to improper validation of user-supplied strings before executing system calls. An attacker needs initial low-privileged code execution to exploit it, allowing them to escalate privileges and run arbitrary code as root.

Detection Guidance

Detection requires verifying the Sony XAV-9500ES firmware version and checking for crash dump handler anomalies. Use the device's admin interface or SSH to inspect the firmware version. Look for unexpected system call executions or privilege escalation attempts in logs. No specific commands are provided in the resources.

Impact Analysis

If exploited, this vulnerability allows attackers with local access to gain root privileges on the device. This could lead to full control over the system, enabling unauthorized modifications, data theft, or disruption of device functionality. The impact is limited to local attacks requiring initial access.

Compliance Impact

This vulnerability allows local attackers to escalate privileges to root via improper crash dump handler validation, enabling arbitrary code execution. Such unauthorized access could lead to unauthorized data access, modification, or deletion, which may violate GDPR (data protection) and HIPAA (health data confidentiality) requirements for access controls and integrity.

Mitigation Strategies

Apply the firmware update released by Sony to address the vulnerability. Ensure the device is isolated from untrusted networks until patched. Monitor for unusual activity or privilege escalation attempts.

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