CVE-2025-54465

Hard-coded Credentials Vulnerability in ZKTeco WL20

Description

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.

Remediation

Solution:

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

Category

6.8
CVSS
Severity: Medium
CVSS 4.0 •
EPSS 0.03%
Vendor Advisory zkteco.com
Affected: ZKTeco Co WL20 Biometric Attendance System
Published at:
Updated at:

References

Link Tags
https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2025-0172 third party advisory
https://www.zkteco.com/en/Security_Bulletinsibs/20 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-54465?
CVE-2025-54465 has been scored as a medium severity vulnerability.
How to fix CVE-2025-54465?
To fix CVE-2025-54465: Upgrade ZKTeco WL20 Biometric Attendance System firmware to version ZLM31-FXO1-4.0.3. https://www.zkteco.com/en/Security_Bulletinsibs/20
Is CVE-2025-54465 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-54465 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54465?
CVE-2025-54465 affects ZKTeco Co WL20 Biometric Attendance System.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.