CVE-2020-29583—Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability

PUBLISHEDvulnerability record
2021-11-03 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2020-29583
Project:
Zyxel
Product:
Multiple Products
Date Added:
2021-11-03
Due Date:
2022-05-03
Last Updated:
June 21, 2025

Vulnerability Name

Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability

Description

Zyxel firewalls (ATP, USG, VM) and AP Controllers (NXC2500 and NXC5500) contain a use of hard-coded credentials vulnerability in an undocumented account ("zyfwp") with an unchangeable password.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2020-29583

Related Weaknesses

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