CVE-2026-15430
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Local Privilege Escalation in Wellbia XIGNCODE3 xhunter2.sys

Publication date: 2026-08-03

Last updated on: 2026-08-03

Assigner: CERT/CC

Description
Improper access control in the IRP_MJ_WRITE command interface in Wellbia XIGNCODE3 xhunter2.sys, version 2026.6.1.192, allows a local, unprivileged attacker to achieve local privilege escalation to NT AUTHORITY\SYSTEM, extract credentials from PPL-protected lsass.exe, and terminate PPL-protected security processes.

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Meta Information

Published
2026-08-03
Last Modified
2026-08-03
Generated
2026-08-23
AI Q&A
2026-08-03
EPSS Evaluated
2026-08-22
NVD
CVE-2026-15430
EUVD
EUVD-2026-52326

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wellbia xigncode3 2026.6.1.192

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-732 The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
CWE-269 The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

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Executive Summary

This vulnerability is an improper access control flaw in the IRP_MJ_WRITE command interface of Wellbia XIGNCODE3's xhunter2.sys driver version 2026.6.1.192. It allows a local, unprivileged attacker to escalate privileges to SYSTEM level, extract credentials from PPL-protected lsass.exe, and terminate PPL-protected security processes.

Detection Guidance

This vulnerability involves improper access control in the IRP_MJ_WRITE command interface of Wellbia XIGNCODE3's xhunter2.sys driver. Detection requires checking for unauthorized modifications to system processes or drivers. Inspect xhunter2.sys integrity, monitor for unexpected privilege escalations, and verify no unauthorized access to PPL-protected processes like lsass.exe. Use tools like Process Explorer or Windows Event Viewer to check for suspicious activity.

Impact Analysis

An attacker could gain full control over your system, steal sensitive credentials, and disable security protections. This could lead to complete system compromise, data theft, or further attacks within your network.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules. Organizations may face compliance violations, fines, or legal consequences if exploited.

Mitigation Strategies

Update or patch the Wellbia XIGNCODE3 xhunter2.sys driver to version 2026.6.1.192 or later to address the improper access control in IRP_MJ_WRITE.

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