CVE-2025-55280

Information Disclosure Vulnerability in ZKTeco WL20

Published Aug 13, 2025 CVSS 4.0 · 5.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Workaround

* Apply mitigations as per vendor instructions (whenever available) or discontinue the use of the product if mitigations are unavailable. * Perform risk assessment and implement physical security controls to prevent unauthorized access to the device.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-24561 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Information Disclosure Vulnerability in ZKTeco WL20
Weaknesses CWE-312
References
Metrics cvssV4_0

{'score': 5.2, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-In
Published
Updated
Aug 13, 2025, 12:59 PM
Reserved
Aug 12, 2025, 11:08 AM
Status
Deferred
Published
Aug 13, 2025, 12:15 PM
Modified
Jun 17, 2026, 9:41 AM