Weintek cMT3092X HMI Plaintext Password Storage

Executive Summary

The vulnerability CVE-2026-61886 involves the Weintek cMT3092X HMI storing user account passwords in plaintext. This means passwords are not encrypted or hashed, making them easily readable if accessed by unauthorized parties.

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Detection Guidance

This vulnerability involves plaintext storage of user account passwords in Weintek cMT3092X HMI devices. Detection requires checking for plaintext password storage in device configuration files or memory dumps. No specific commands are provided in the context. Review device documentation for storage locations and inspect files or memory for unencrypted credentials.

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Impact Analysis

This vulnerability allows attackers to retrieve plaintext passwords, potentially leading to unauthorized access to the HMI system. This could result in data breaches, system manipulation, or further network compromise depending on the HMI's role in the environment.

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Compliance Impact

Storing passwords in plaintext violates security best practices and likely breaches GDPR, HIPAA, and other regulations requiring proper data protection. Non-compliance may lead to legal penalties, fines, or reputational damage.

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Mitigation Strategies

Immediate mitigation steps include isolating affected HMI devices from untrusted networks, updating to a patched firmware version if available, and changing all default and user passwords. Ensure passwords are stored securely and not in plaintext. Monitor vendor advisories for official patches or workarounds.

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