Hard-coded Private Key Vulnerability in ZKTeco WL20_CVE-2025-55279

6.9 / 10

MEDIUM

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Description

This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve private key stored in the firmware of the targeted device.

Successful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device.

Basic Information

ID CVE-2025-55279

Source CERT-In

Published Aug 13, 2025 at 11:23

Affected Product

Vendor ZKTeco Co

Product WL20 Biometric Attendance System

Version <=ZLM31-FXO1-3.1.8

Affected Versions ZKTeco Co WL20 Biometric Attendance System <=ZLM31-FXO1-3.1.8

CWE Classification

CWE-798

References

www.cert-in.org.in /s2cMainServlet

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    "published": "2025-08-13T11:23:53.500Z",
    "modified": "2025-08-13T11:23:53.500Z",
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