CVE-2025-55280 - CVE House
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Status published Medium CVE-2025-55280

Information Disclosure Vulnerability in ZKTeco WL20

Vulnerability Description

This vulnerability exists in ZKTeco WL20 due to storage of Wi-Fi credentials, configuration data and system data in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and reverse engineer the binary data to access the plaintext sensitive data stored in the targeted device. Successful exploitation of this vulnerability could allow the attacker to gain unauthorized network access, retrieve and manipulate data on the targeted device.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This vulnerability is reported by Shravan Singh from Kavach IoT Security.

Affected Vendor

Affected Software

WL20 Biometric Attendance System
Vulnerable Versions:
<=ZLM31-FXO1-3.1.8

Timeline

Official Publish: August 13th, 2025
Last Modified: August 13th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)