CVE-2026-90493
Received Received - Intake

Improper Access Control in Tonec Internet Download Manager Kernel Driver

Publication date: 2026-09-13

Last updated on: 2026-09-13

Assigner: VulDB

Description
A vulnerability was detected in Tonec Internet Download Manager up to 6.42 Build 63 on Windows. The impacted element is an unknown function of the file idmwfp.sys of the component Kernel Driver. The manipulation results in improper access controls. Attacking locally is a requirement. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-09-13
Last Modified
2026-09-13
Generated
2026-09-13
AI Q&A
2026-09-13
EPSS Evaluated
N/A
NVD
CVE-2026-90493
EUVD
EUVD-2026-76938

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tonec internet_download_manager 6.42_build_63

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
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CWE ID Description
CWE-266 A product incorrectly assigns a privilege to a particular 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.

Attack-Flow Graph

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Executive Summary

This is a local privilege escalation vulnerability in Tonec Internet Download Manager up to version 6.42 Build 63 on Windows. It involves the file idmwfp.sys in the Kernel Driver component, where improper access controls allow attackers to manipulate the system. Exploitation requires local access and is now publicly available.

Detection Guidance

Since this vulnerability requires local access and involves the idmwfp.sys driver, detection may involve checking for unusual driver activity or known malicious files. Review running processes for idman642build63.exe or idmwfp_reg_demo.exe. Inspect loaded drivers for idmwfp.sys. Use commands like 'sc query idmwfp' or 'driverquery' to list drivers.

Impact Analysis

An attacker with local access could exploit this to gain elevated privileges on your system, potentially allowing them to install malware, steal data, or take full control of your computer. The public availability of the exploit increases the risk of real-world attacks.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations using this software may face compliance failures and legal penalties.

Mitigation Strategies

Immediately update Internet Download Manager to the latest version if available. Disable the idmwfp.sys driver if not critical. Restrict local user permissions to prevent exploitation. Monitor system logs for suspicious activity related to the driver or associated executables.

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