CVE-2025-54465: Hard-coded Credentials Vulnerability in ZKTeco WL20

Published Aug 13, 2025
·
Updated

This vulnerability exists in ZKTeco WL20 due to hard-coded MQTT credentials and endpoints 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 the hard-coded MQTT credentials and endpoints from the targeted device.

Successful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the MQTT broker and manipulate the communications of the targeted device.

Affected Software

1 affected component
ZKTeco WL20

Remediation

Information

Upgrade ZKTeco WL20 Biometric Attendance System firmware to version ZLM31-FXO1-4.0.3. https://www.zkteco.com/en/Security_Bulletinsibs/20

Event History

Aug 13, 2025
CVE Published
via MITRE·11:17 AM
Data Sourced
via MITRE·11:17 AM
RemedyDescriptionWeakness
Data Sourced
via NVD·12:15 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-54465?

CVE-2025-54465 is considered a high severity vulnerability due to the exposure of hard-coded credentials allowing unauthorized access.

2

How do I fix CVE-2025-54465?

To mitigate CVE-2025-54465, update the ZKTeco WL20 firmware to the latest version that addresses the hard-coded credentials issue.

3

What devices are affected by CVE-2025-54465?

The ZKTeco WL20 is the primary device affected by CVE-2025-54465 due to its hard-coded MQTT credentials.

4

Can CVE-2025-54465 be exploited remotely?

CVE-2025-54465 requires physical access to the device for exploitation, making remote attacks less likely.

5

What are the potential risks of CVE-2025-54465?

The potential risks of CVE-2025-54465 include unauthorized access to the device, data leakage, and compromised network security.

Contact

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