CVE-2025-55279

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ZKTeco CoWL20 Biometric Attendance System<=ZLM31-FXO1-3.1.8affected

Weaknesses

  • CWE-798: CWE-798: Use of Hard-coded Credentials

Workarounds

  • 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.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References